Guide

LUT vs color grade.

Updated November 5, 2026

People often say "just throw a LUT on it" when they mean "grade the shot." A LUT and a color grade are related, but they are not the same job. Here is a practical way to tell them apart and use both without wrecking the image.

What a LUT actually is

LUT stands for lookup table. Your editor samples each color, finds nearby entries in the table, and replaces them with the stored output colors. That is why a LUT is fast and repeatable, and why it cannot adapt: the same RGB in always becomes the same RGB out. Creative looks, camera log conversions, and monitor emulation are common LUT jobs. See What is a .cube file? for the file format.

What a color grade is

A grade is the process: set exposure and contrast, balance white and color temperature, shape the image with curves or wheels, isolate skin or skies if needed, and match shots so a scene feels like one place. A LUT can be one node or layer inside that process. The grade is the whole stack plus your judgment.

Side-by-side

When a LUT is enough

• Social cuts, YouTube, and drafts where speed matters more than shot-matching.
• You already corrected exposure and white balance, and you want a consistent look family.
• You dial strength down (often 60–80%) so the LUT is a starting point, not a finish.

When you still need a real grade

• Mixed cameras, mixed lighting, or a scene that must match shot to shot.
• Skin tones that the LUT pulls too magenta, green, or orange.
• Deliverables with scopes, legal ranges, or client notes that a single .cube cannot satisfy.
• Log footage that still needs a proper conversion before any creative look (Log vs Rec.709).

A clean order of operations

1. Technical balance first: exposure, white balance, noise as needed.
2. Convert log to a grading space or Rec.709 if the footage is log—conversion LUT or built-in transform, not a creative look.
3. Optional creative LUT on its own node or layer, at reduced strength.
4. Primary and secondary grading around or after the look so faces and highlights stay natural.
5. Shot matching last across the sequence.

Stacking a creative LUT on unconverted log, or stacking two creative LUTs, is the usual path to muddy or neon images. How to use a LUT in any editor and How to install a .cube LUT cover loading steps.

Try before you commit

Use the free LUT previewer to load a .cube on your own still in the browser—nothing uploads. Compare a light strength against full strength before you drop the file into a project.

Where Filmsilk fits

Filmsilk looks are creative 3D .cube LUTs built for Rec.709 input. They are a look layer inside a grade, not a substitute for balancing or shot matching. You can try every look on your own frame before you buy. The Collection is $29 one-time; Filmsilk Complete is $39 and adds Studio so you can adjust a look and export your own .cube.