Rec.709 color grading means grading so your image looks right on a Rec.709 display, the HD video standard (ITU-R BT.709) behind most SDR delivery, including YouTube's recommended upload settings. The real decision isn't which LUT to reach for. It's whether you grade directly in Rec.709 or move the footage into a wider working space and convert back to Rec.709 on the way out.
A grade that looks wrong after export can come from a wrong gamma assumption, a hard push on 8-bit footage, or a player reading the file's tags differently than your monitor does. This guide covers what the standard defines and leaves out, how it differs from sRGB and Log, when grading inside Rec.709 is fine, a working-space workflow, and exporting without the Mac gamma shift.
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What Rec.709 actually defines
Rec.709 is the international standard for HD video, published by the ITU as ITU-R BT.709 and currently in its sixth edition, approved in June 2015. It sets the color primaries, the D65 white point, and the transfer curve a camera uses to encode light. The standard doesn't define a display gamma, though. That came later, in ITU-R BT.1886 (2011), which gives reference displays a 2.4 power curve.
So "Rec.709 gamma" isn't one setting everywhere: DaVinci Resolve, for one, offers more than one. At the grading desk, the reference is a display set to Rec.709 with gamma 2.4. A screen calibrated to a different curve shows shadows and midtones differently.
Rec.709 vs sRGB
Rec.709 uses the same primaries as sRGB and the same D65 white point, so the two cover the same range of colors. The difference is tone. sRGB is defined around an 80 cd/m² reference white and a piecewise curve built on a 1/2.4 exponent. A Rec.709 reference display sits at 100 cd/m² with BT.1886's 2.4 gamma. Same colors, different curve, so a grade balanced on an sRGB-calibrated screen can look different in the shadows on a 2.4 reference display.
Shot in, graded in, delivered to: Log vs Rec.709
"Rec.709" means three different things depending on where you are in the pipeline. A camera's Rec.709 profile records footage already encoded for Rec.709 display. Log and raw footage hold more image information and need a transform before they look normal. Delivering to Rec.709 is about the output transform, and it applies no matter how the footage was shot.
Rec.2020 is the wider color space for UHD and HDR work. For SDR, Rec.709 is still the target: Apple calls it the current standard for HD cable, Blu-ray discs, and most streaming video today. Our guide to video color correction covers the first pass on exposure and balance.
Should you grade directly in Rec.709?
Grading straight in Rec.709 works for light corrections, especially on 10-bit source. The trouble starts when you push a grade hard on 8-bit footage: a 10-bit file has four times as many code values per channel, so steep curves and tight keys hold up better there. A wide working space gives the grade more room, then converts back to Rec.709 at output.
Your editor already makes this choice for you. Premiere Pro's default sequence setup defaults to a Rec.709 working space and output, with a wide-gamut ACEScct option built for log and raw sources. Final Cut Pro's Standard library uses Rec.709 primaries, with Wide Gamut HDR (Rec.2020) as the alternative. DaVinci Resolve lets you build the transforms yourself. Our Premiere Pro vs DaVinci Resolve for color grading breakdown covers which tool suits your work.
A working-space workflow for Rec.709 footage
This workflow follows Paul Handley's Rec.709 workflow in DaVinci Resolve, and the same logic applies to the wide-gamut settings in Premiere Pro and Final Cut Pro. Convert Rec.709 into a large working space, grade there, and convert back. The adjustments get room to move, and the output still lands on Rec.709 for delivery.
How to grade Rec.709 footage in a wide working space
- Check the clip's bit depth before grading
Open the clip metadata and note the codec and bit depth. A 10-bit ProRes file can take secondary keys. An 8-bit H.264 file needs gentler, global moves.
- Transform Rec.709 into a wide working space
In DaVinci Resolve, add a Color Space Transform node with the input set to Rec.709 Gamma 2.4 and the output set to DaVinci Wide Gamut and DaVinci Intermediate. In Premiere Pro or Final Cut Pro, use the wide-gamut sequence preset or library setting instead.
- Balance exposure and white before adding a look
Set exposure with lift, gamma, and gain, then neutralize any color cast. Read both on the waveform and vectorscope rather than trusting the viewer. The color temperature chart explains where casts come from on set.
- Build the look and skip keys on 8-bit footage
Add warmth, contrast, and saturation in separate nodes. On 10-bit footage you can isolate skin with a qualifier; on 8-bit, Handley avoids keying and grades globally. For palette choices, see color theory in your videos, and for applying looks, editing with LUTs.
- Transform back to Rec.709 and check on a 2.4 display
Copy the first transform, swap its input and output, and place it last, so every node between the two works in the wide space. Then judge the result on a display set to Rec.709 gamma 2.4.
Exporting for Rec.709 without the Mac gamma shift
For SDR delivery, export tagged as Rec.709. YouTube's upload encoding guidance recommends BT.709 for SDR uploads and converts unsupported color spaces to BT.709 on its side, sRGB transfer curves included. The common surprise happens before upload: on a Mac, QuickTime Player can show a correctly graded file differently from your reference display, depending on how the Rec.709 tag in the file is written.
DaVinci Resolve added a Rec.709-A option to match how Apple frameworks handle one of those tags, while Rec.709 Gamma 2.4 stays available for broadcast-style monitoring. The practical rule: grade on a calibrated reference, then check the export on the platform it ships to. If your desk monitor is the weak link, start with our roundup of monitors for video editing.
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Frequently asked questions
Yes. Rec.709 footage grades well for corrections and moderate looks, and 10-bit Rec.709 holds up to more than 8-bit. Expect less room than Log or raw, which record more image information, and avoid heavy secondary keys on 8-bit files.
No. Rec.709 is a video standard that defines color primaries, a white point, and a transfer curve. A "Rec.709 LUT" is a lookup table that converts footage, such as Log, into Rec.709. Our guide to LUTs explains how they work.
Not quite. They share the same primaries and D65 white point, so they cover the same colors. They differ in transfer curve and reference brightness: sRGB is built around 80 cd/m², while a Rec.709 reference display uses BT.1886's 2.4 gamma at 100 cd/m².
Log is a flat recording curve that keeps more image information and needs a transform before it looks right. Rec.709 is the standard most SDR video is delivered in. You can shoot Log, grade in a wide working space, and still deliver Rec.709.
Convert first if you plan to push the image hard. A wide working space such as DaVinci Wide Gamut gives your adjustments room, then converts back to Rec.709 at output. For light fixes on 10-bit Rec.709 footage, grading directly in Rec.709 is fine.
