Color Saturation Tool

A fast, free tool to adjust saturation of a hex color and return the new hex value for design, branding, and UI tasks.

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About This Tool

The tool accepts a base hex color and a saturation percentage, converts the color from hex to HSL, scales the saturation, clamps to 0–200%, and converts back to hex. This enables precise color refinement for brand palettes and UI themes.
Conceptually it operates as a pure color-space transformation: hex → RGB → HSL, adjust S, then back to RGB and hex. It does not modify luminance unless saturation changes influence perceived brightness.
Designed for designers, front-end developers, marketing teams, and branding managers, it provides a deterministic hex output that supports consistent palettes across platforms. Its key differentiator is safety in clamping and a clear, non-destructive calculation pipeline that yields repeatable results for design tokens and style guides.

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How to Use

Provide inputs: base_color_hex and saturation_pct.
Run calculation: the tool converts and adjusts saturation in the sRGB color space.
Review outputs: the resulting hex value is shown for copy/paste.
Export: copy the hex or integrate into design tokens, palettes, or CSS variables.

Frequently Asked Questions

Find Quick Answers

What inputs are required?

Inputs required are a base_color_hex in #RRGGBB format and a saturation_pct value (0–200). The tool validates both fields, then returns a single hex color that reflects the adjusted saturation.

What happens if saturation_pct is above 100%?

Saturation is scaled according to the provided percentage, but the internal representation caps saturation at 1.0 (100%). If you request 200%, output remains a valid, fully saturated color with deterministic hex output.

What color space is used?

The transformation uses the sRGB color space. Hex is converted to RGB, then to HSL for saturation adjustment, and converted back to hex.

Can I input named colors?

Named color inputs are not accepted in the base_hex field. Use a hex form like #RRGGBB, or convert names to hex before processing.

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