CHR0MA is a color-grading plugin for Adobe After Effects and Adobe Premiere Pro that replaces the standard Hue/Saturation workflow using the Oklab color model. The idea is to preserve perceived brightness and avoid muddy or overly neon color shifts when adjusting hue and saturation.  

Key points:

• Uses Oklab/Oklch color science instead of standard sRGB adjustments

• Designed for cleaner hue rotation and saturation changes

• Open source

• “Name Your Own Price” licensing for individuals

• Works with AE and Premiere versions from CC 2017 through 2026

The plugin is positioned as:

“Hue/Saturation but better”

Why people care about Oklab:

• Traditional hue shifting in AE can flatten contrast or create ugly artifacts

• Oklab tries to align more closely with human visual perception

• You get more natural gradients and more stable luminance during color transformations