Why Reference Monitors Are the Starting Point for Commercial Video Color Grading

The final result of a commercial video is determined by multiple stages, among which color grading has the greatest impact on visual mood, brand identity, and product texture. However, the colors the colorist sees on the monitor are often not the same as what the brand sees on a laptop screen. Screen brightness, color gamut, contrast, and ambient light reflection all alter human color perception. If viewing conditions are not standardized, a brand saying "make it a bit warmer" in a conference room might be interpreted by the colorist in the studio as "add 300K to the color temperature," leading to completely different results. The role of a reference monitor is to allow everyone involved in decision-making to view the footage under the same color standards, reducing subjective bias.

Commercial video production footage from case materials, observing the relationship between the lens, subject, and lighting
Case material frame grab, sourced from the research document "Kerner Optical, The ex-ILM Model Shop". This image is used solely to observe the lens and production methods and does not represent an ONCE client project. Source page Case material page

A reference monitor is not an ordinary display; it must meet broadcast or cinema color standards, such as Rec.709, DCI-P3, or Adobe RGB, and be hardware-calibrated. Commercial video projects typically use Rec.709 as the primary delivery standard because most online platforms and television screens are based on this color gamut. If the project also requires a theatrical or HDR version, the corresponding color space must be determined in advance. During project initiation, the brand should require the production team to clearly specify which reference monitor is being used, along with its calibration status and the date of its most recent calibration. This information should be written into the project documentation as one of the acceptance criteria.

In actual projects, many brands are accustomed to viewing color-graded versions on mobile phones or office computers, which puts colorists in a dilemma. The automatic brightness, color enhancement, and color temperature adjustments of mobile screens will distort the image, and the "yellowish tint" seen by the brand may simply be due to the screen's warm color temperature. During early communication, the production team should clearly inform the brand to use a reference monitor or a calibrated display to view the color-graded versions, and provide lighting requirements for the viewing environment. If the brand insists on using a standard screen, the contract must state that "color perception deviations caused by differences in viewing devices are not considered color grading quality issues."

Viewing standards must be determined during the project initiation phase.

During the project initiation phase of commercial video projects, the focus is usually on the script, budget, and shooting schedule, making viewing conditions easy to overlook. However, color grading is the most standardization-dependent step in the post-production workflow, and if viewing standards are not defined at project initiation, post-production rework is almost inevitable. At the project kickoff meeting, the brand should require the production team to provide a "color management plan," which must include at least the reference monitor model and calibration certificate, the target color space (such as Rec.709), lighting color temperature recommendations for the monitoring environment, and the distribution method for preview versions.

The production team needs to confirm whether the brand has a designated color standard. For example, some brands have strict consistency requirements for product colors, such as cosmetics, automotive interiors, or food packaging, and these projects require comparison using color charts or Pantone color numbers during the color grading phase. If the brand has no special requirements, the production team can recommend adopting the industry-standard Rec.709 Gamma 2.4, which is the standard for most video platforms and televisions. However, note that some online platforms will require Rec.709 Gamma 2.2 because computer and mobile screens have different gamma values, so corresponding versions must be exported according to platform requirements before release.

During project initiation, it is also necessary to clarify "who has the final color grading decision-making authority." Brands usually have a marketing director or brand manager involved, while the production team has the director and colorist. If multiple parties have revision opinions but lack unified viewing conditions, discussions will devolve into subjective tug-of-wars like "I think it should be brighter" or "I think it should be darker." It is recommended to designate a single brand representative as the sole color grading approver during project initiation, and require that representative to view versions using a reference monitor or a calibrated display. This can significantly shorten the approval cycle and reduce ineffective communication.

How to leave room for color grading on set.

Color grading does not start in post-production; the quality of the footage on set directly determines the color grading latitude. In commercial video shoots, cinematographers usually record in Log or RAW formats to retain more highlight and shadow details. However, the image the brand sees on the monitor is often a preview effect converted through a LUT (Look-Up Table), which does not represent the final color grading result. If the brand sees the image as gray or dark on set and mistakenly assumes there is an issue with the footage, they may request a reshoot, causing unnecessary costs.

The production team should explain the visual characteristics of Log and RAW to the brand before shooting, and demonstrate a simple LUT preview effect so the brand understands that "flat footage" is normal. At the same time, the same reference monitor should be used for monitoring on set, rather than relying on the camera's built-in LCD screen. The reference monitor needs to be placed in a position free from direct sunlight, and the ambient light should be kept at a low level to avoid reflections affecting judgment. If conditions permit, a sun hood can be installed around the monitor to ensure a stable monitoring environment.

On set, "color reference" information also needs to be recorded. For example, when shooting products, place a standard color chart or gray card in the frame, which can be used to correct white balance and exposure during post-production color grading. For projects with high brand color requirements, such as corporate logos or product packaging, a color chart should be used for comparison during shooting, and the reference monitor should be the standard during post-production color grading to ensure brand color consistency across different scenes. If no color chart is recorded on set, post-production color grading can only rely on memory or reference images, which carries a high risk.

Standardized workflow for post-production color grading.

During the color grading stage, the reference monitor is the colorist's working baseline. The colorist must ensure the monitor is calibrated and that the calibration parameters match the project requirements. Calibration typically includes brightness, contrast, color temperature, gamma, and color gamut, and a report should be generated after calibration recording the date and parameters. The brand can request to view this report to confirm the monitor's status. If the project cycle is long, it is recommended to recalibrate weekly, as monitors drift over time.

Before starting color grading, the colorist should first set up the project's color management. In software like DaVinci Resolve or Baselight, the timeline color space must be set to match the delivery standard, such as Rec.709 Gamma 2.4. If the footage is Log or RAW, the input color space must be set correctly, otherwise the color grading results will be distorted. The brand does not need to master these technical details, but should require the production team to provide a color grading settings description, including the input color space, output color space, and LUT usage. This allows for cross-checking during acceptance.

During color grading, the brand will typically receive multiple preview versions. The production team should standardize the distribution method for preview versions, such as through a video review platform or encrypted link, and clearly inform the brand to view them on a reference monitor or calibrated display. If the brand cannot use a reference monitor, the production team can provide a color calibration reference video containing a grayscale and color chart to help the brand adjust their own screen. However, note that this can only serve as an aid and cannot replace a reference monitor.

Specific check items for color grading acceptance

Color grading acceptance is the most controversial stage in commercial video projects because color is highly subjective. During acceptance, the brand should conduct item-by-item checks based on a reference monitor rather than relying on feeling. The following check items can serve as an acceptance checklist: first, whether the overall brightness is within the target range and if the image is overexposed or underexposed; second, whether the white balance is accurate and if white objects appear neutral without a blue or yellow cast; third, whether skin tones are natural and if character skin looks healthy without a green or purple cast; fourth, whether brand colors are accurate, such as if the logo color matches the brand standard; fifth, whether the contrast is appropriate and if details in the highlights and shadows are preserved; sixth, whether the saturation meets expectations and is not overly vibrant or too dull.

During acceptance, the brand should use the same reference monitor and view it under the same ambient lighting. If the project has multiple versions, such as a TV version and a web version, the color of each version must be checked separately to ensure it meets the corresponding platform requirements. For example, web platforms may require Rec.709 Gamma 2.2, while television broadcasting requires Gamma 2.4, resulting in brightness differences between the two. The production team should proactively provide the color parameters for each version and explain the reasons for the differences. The brand should not judge solely based on screenshots, as screenshots lose color information.

If color issues are found during acceptance, the brand should clearly specify the exact scene and timecode, and describe the problem, such as the product packaging at 2 minutes and 15 seconds looks too red. The production team will reproduce the issue on the reference monitor based on the feedback and then make adjustments. If the brand provides feedback that the overall feel is wrong without specific direction, the production team may not be able to make effective modifications. Therefore, when providing feedback, the brand should be as specific as possible, preferably attaching reference images or color chart numbers. This improves modification efficiency and reduces back-and-forth communication.

Delivery versions and color management extensions

After color grading is complete, the delivery stage also requires consideration of viewing conditions. Commercial videos typically need to be exported in multiple versions, including a master, platform versions, social media versions, and an archive version. The master should retain the highest quality, such as ProRes 4444 or uncompressed DPX sequences, with a color space consistent with the color grading. Platform versions need to have their encoding and color space adjusted according to the publishing platform's requirements, as platforms like YouTube, WeChat Channels, and TikTok have different default settings for color gamut and gamma. Before delivery, the brand should require the production team to provide a delivery specification sheet listing the resolution, encoding, bitrate, color space, and audio specifications for each version.

Content asset management is a long-term requirement for commercial video projects. After the project concludes, the brand should require the production team to deliver the source files, color grading project files, LUT files, and color management documentation. This ensures that if secondary editing or re-grading is needed in the future, it can be done based on the original footage and color grading settings without requiring a reshoot. Source files should include all shot footage, audio files, music copyright files, font files, and subtitle files. Color grading project files should include all nodes and settings to facilitate future adjustments. Color management documentation should record the monitor model, calibration parameters, and project color space for easy future reuse.

After delivery, the brand should back up all files independently and check file integrity. If the production team provides a cloud storage link, the brand should verify the file size and hash value after downloading to ensure there is no corruption. If the project involves multiple versions, it is recommended to name folders by version and include color space information in the file names, such as "Brand_Promo_Rec709_Gamma2.4_1080p.mp4". This prevents future confusion.

Applicable Boundaries and Exceptions for Reference Monitors

Reference monitors are not required for all projects; their use depends on the project budget and delivery requirements. For low-budget social media short videos that may only require smartphone shooting and simple color grading, the cost of a reference monitor might exceed the project itself. In this case, the production team can use a calibrated standard monitor, but the limitations of the color standard must be clearly stated in the contract. For high-end commercial videos, such as TV commercials or brand promotional videos, reference monitors are standard equipment because brands have high color requirements and the projects involve multiple rounds of revisions.

Another exception is HDR projects. HDR color grading requires an HDR-capable reference monitor, such as a device with a peak brightness of over 1000 nits, and must follow HDR color spaces like Rec.2020 and the PQ curve. If the project targets HDR but the production team only has SDR monitors, the color grading results cannot be accurately evaluated. When initiating the project, the brand should clarify whether an HDR version is needed and confirm that the production team has the appropriate monitoring equipment. Otherwise, it is recommended to produce only an SDR version to avoid acceptance issues later.

Reference monitors are also not suitable for all viewing scenarios. For example, if a brand displays a video on an outdoor advertising screen, the screen's brightness, color gamut, and ambient light will be completely different from an indoor reference monitor. In this case, color grading should be based on the reference monitor, but the characteristics of the outdoor screen must be additionally considered, such as the potential loss of shadow detail in high-brightness environments. The production team can suggest that the brand conduct an actual playback test on the outdoor screen rather than relying solely on the reference monitor. In short, a reference monitor is the baseline for color grading decisions, but not a simulator for all playback environments.

Next Steps

In the color grading phase of commercial video projects, the reference monitor is a key tool for unifying viewing conditions. When initiating a project, the brand should require the production team to clarify the color management plan and insist on using a reference monitor during shooting, post-production, and acceptance. If the project budget is limited, the use of a calibrated standard monitor can be negotiated, but the risk of color deviation must be noted in the contract. The production team should proactively provide calibration reports and delivery specification sheets to help the brand understand color decisions. It is recommended that the brand have a brief color management discussion with the production team before the project starts to confirm that both parties share the same definition of "accurate color". This effectively reduces the risk of rework and ensures a smoother project delivery.

If you are preparing a commercial video production project, you can first organize your brief, reference visuals, product or corporate materials, delivery platforms, and copyright scope, and then view theVideo Production Solutions pageto translate communication from abstract preferences into actionable production boundaries.