Color Space Converter

Color Space Converter | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Design
Input types: text, select
Output type: html
Sample coverage: 4
API ready: Yes

Overview

The Color Space Converter is a utility designed to translate CSS-style colors between HEX, RGB, HSL, CIELAB, and Display-P3 formats. It provides CSS-ready output values and performs gamut checks using D65 color-space matrices to ensure your colors display accurately across standard and wide-gamut screens.

When to use

When translating standard web colors like HEX or RGB into perceptual color spaces like CIELAB for design system calculations.
When adapting digital assets for wide-gamut displays by converting standard sRGB values to Display-P3.
When verifying if a specific color fits within standard sRGB or wide-gamut Display-P3 color boundaries.

How it works

1Input a CSS-style color value such as a HEX code, RGB, HSL, CIELAB, or Display-P3 string.
2Select the input format or let the tool auto-detect the format of your color value.
3The tool processes the color using D65 color-space matrices to calculate equivalent values across all supported spaces.
4Review the CSS-ready output formats and check the gamut status to see if the color is within sRGB or Display-P3 limits.

Use cases

Converting standard HEX codes to Display-P3 for modern iOS and macOS application UI design.
Translating RGB values to CIELAB to calculate perceptually uniform color palettes and contrast ratios.
Generating CSS-ready color declarations for web stylesheets from raw color values.

Examples

1. Converting HEX to Display-P3 for Wide-Gamut UI

UI Designer

Background

A designer is building a high-end mobile app interface and wants to leverage the vibrant colors of modern OLED screens.

Problem

The brand color is defined in standard HEX, but they need the Display-P3 equivalent for CSS.

How to use

Enter #FF6B35 in the Color Value field, set the Input Format to Auto Detect, and run the conversion.

{"color": "#FF6B35", "inputFormat": "auto"}

Outcome

The tool outputs the equivalent Display-P3 CSS color string and confirms it is within the Display-P3 gamut.

2. Verifying CIELAB Values for Accessible Design

Accessibility Specialist

Background

An accessibility specialist needs to analyze a color's perceptual lightness using the CIELAB space to ensure text readability.

Problem

They only have the HSL value of the background color and need the exact L*a*b* coordinates.

How to use

Input hsl(14 100% 60%) into the Color Value field and select HSL as the input format.

FAQ

What color spaces does this converter support?

It supports conversions between HEX, RGB, HSL, CIELAB, and Display-P3.

What is a gamut check?

It determines whether a color can be accurately represented within a specific color space, such as sRGB or Display-P3, without clipping.

How does the tool handle color space calculations?

It uses standard D65 illuminant color-space matrices to perform precise mathematical conversions between web, perceptual, and wide-gamut spaces.

Can I paste CSS-style color strings directly?

Yes, you can input standard CSS formats like rgb(255 107 53) or hsl(14 100% 60%) directly into the input field.

Do I need to manually specify the input format?

No, the tool features an auto-detect option that automatically identifies the input format, though you can manually select it if preferred.

{"color": "hsl(14 100% 60%)", "inputFormat": "hsl"}

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Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Converting HEX to Display-P3 for Wide-Gamut UI

2. Verifying CIELAB Values for Accessible Design

FAQ

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