# Saturate Adjusts the saturation of a color. ## Parameter Types **Saturate (color3f):** |Input |Type | |-------------------|-------------| |`In` |Color3| |`Amount` |Float | |`Luma Coefficients`|Color3| |Output|Type | |------|-------------| |`Out` |Color3| **Saturate (color4f):** |Input |Type | |-------------------|-------------| |`In` |Color4| |`Amount` |Float | |`Luma Coefficients`|Color3| |Output|Type | |------|-------------| |`Out` |Color4| ## Parameter descriptions - `In`: The input color to adjust the saturation of. - `Amount`: The multiplier to apply to the saturation; the default value is `1.0`. - `Luma Coefficients`: The luma coefficients of the color space. The possible values for this node are the luma coefficients for the color spaces `acescg`, `rec202/rec2100`, or `rec709`. The default value is the luma coefficients for `acescg`, which are `(0.2722287, 0.6740818, 0.0536895)`. ## Discussion The `Saturate` node performs a linear interpolation between the incoming color value and the luminance of the incoming color value. Setting the value of the `Amount` parameter to `0` adjusts the output to a grayscale of the input equal to the value that the [`Luminance`](/documentation/ShaderGraph/Adjustment/Luminance) outputs. > Note: The effect of this node isn’t equivalent to adjusting saturation with the ``doc://ShaderGraph-Docs/documentation/ShaderGraph/Adjustment/HSV-Adjust`` node. The `Saturate` node takes into account a colorspace when processing its modifications. Below is an example of a simple node graph that uses the Saturate node to modify the saturation of an image:  Below, the resulting texture applies to a cube:    --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)