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Color Quantizer

Snap any color to the closest swatch in your brand palette. Perfect for consistent design systems, LED programming, and print production.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Input color

Palette colors

Separate colors with commas, spaces, or new lines. Hex formats like #1D4ED8 or shorthand #0F0 are supported.

Closest match

Input

#3366FF

Match

#1D4ED8

Jump to helper sections

What is color quantization?

It reduces a color to the closest match in a fixed palette using Euclidean distance in RGB space. Useful for brand guidelines, LED lighting, or indexed images.

How do I define a palette?

Enter hex colors separated by commas, spaces, or new lines. You can paste brand palettes or export from design tools.

Does this support other color spaces?

This tool works in RGB for speed. Wave 5 will add perceptual color spaces (Lab/OKLCH) for more human-friendly matching.

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.