What It Does
CHR0MA is a drop-in replacement for the native Hue/Saturation effect in Premiere Pro and After Effects. Instead of operating in sRGB, it uses Björn Ottosson’s Oklab color space to produce hue and saturation adjustments that hold up visually, avoiding the neon shifts, muddy desaturation, and loss of contrast that the standard effect is prone to.
The core issue with sRGB-based hue rotation is that it ignores perceptual luminance. Bright yellow is visually much lighter than bright blue, even at identical saturation values, but sRGB treats them the same. Oklab accounts for this, which means hue rotations feel more natural and saturation changes preserve contrast rather than flattening it.
Oklab is already built into Photoshop gradients and is gaining traction as a modern color standard. CHR0MA makes it available as a practical effect inside Premiere Pro.
Key Features
Oklab color science. All hue and saturation operations happen in the Oklab/Oklch color space rather than sRGB, producing perceptually accurate results that hold luminance relationships across hue shifts.
Improved layout. The effect panel is redesigned compared to Adobe’s native Hue/Saturation, making the controls easier to read and work with.
Open source. The full code is available on GitHub, so technically inclined users can inspect or modify it.
Wide compatibility. Works across Premiere Pro and After Effects versions from CC 2017 through 2026.
Who It’s For
Anyone who regularly uses Hue/Saturation for color work and has noticed the results looking off. Particularly useful for grading stylized content where accurate hue rotation matters, or for desaturation passes where preserving tonal contrast is important. Since it slots in as an effect, the learning curve is minimal if you already know the native tool.
Pricing
CHR0MA is pay-what-you-want. Individual users can pay any amount; the suggested price is $20. Businesses and teams must pay the suggested price to receive a valid license. It is a one-time purchase with no subscription.