Color converter
Convert a color. Keep the system intact.
Convert HEX, RGB, HSL, HWB, Lab, LCH, OKLab, and OKLCH while preserving the source, gamut, alpha, and production-handoff context.
Free color utility
Converter
Inputs update live, exports are copy-ready, and the color math stays deterministic.
Quick start
Starter presets
Start with a realistic setup, then adjust any input and watch the result update.
Valid input example: #4169E1, rgb(65 105 225 / 65%), or oklch(55.98% 0.188 266.4)
If input is invalid: Invalid or incomplete color values are identified at the field, announced, and explained in the result area so they can be corrected without guesswork.
Choose a preset or edit the controls directly.
Conversion workspace
Convert, inspect, and hand off a color
Instructions
- Enter a concrete CSS color such as HEX, a fixed named color, RGB, HSL, HWB, Lab, LCH, OKLab, OKLCH, transparent, or a supported color() value.
- Use Random when you want a quick sample color to test the output formats.
- Choose Quick, CSS, Precise, or Token precision depending on whether you need readable values, implementation syntax, or design-system documentation.
- Copy individual converted values or copy the full export block for documentation, CSS, or design handoff.
Examples: #4169E1, rgb(65 105 225), hsl(225 73% 57%), hwb(225 25% 12%), lab(46.8% 17.78 -66.66), oklch(55.98% 0.188 266.4)
Conversion is deterministic. Alpha is preserved in the source swatch and alpha-capable output values; opaque fallback and contrast notes are labeled separately.
Alpha detected and preserved. Contrast notes use the separately labeled opaque base until the color is composited over a real background.
Source
Detected input
Methodology and guides
How this tool calculates and connects.
Review the formulas, assumptions, edge cases, validation checks, caveats, and related color guidance behind Converter.
Methodology pages
Related guides
How it fits
Convert modern color syntax both ways.
The converter accepts common CSS color formats, resolves the color into a browser-safe value, and returns values formatted for CSS, documentation, tokens, and implementation handoff.
Input formats
Use HEX, RGB, HSL, HWB, Lab, LCH, OKLab, or OKLCH input.
Precision and exports
Switch between Quick, CSS, Precise, and Token output, then copy handoff, CSS, JSON, token-style JSON, Tailwind, or Sass exports.
Source handling
Review source, gamut, alpha, and sRGB fallback notes before shipping a converted value.
Quick overview
Hue Codex Color Converter accepts alpha HEX, RGB, HSL, HWB, Lab, LCH, OKLab, OKLCH, supported color() profiles, fixed named colors, and transparent. It returns the same color as HEX, RGB, HSL, HSV, HWB, XYZ, Lab, LCH, OKLab, and OKLCH while preserving alpha, and shows the authored source, sRGB fallback, contrast context, and copy-ready exports.
- Use it for common conversions such as HEX to RGB, RGB to HEX, RGB to HSL, HSL to RGB, HEX to OKLCH, and OKLCH to HEX.
- The converter keeps one color consistent while showing how that color is written across web, picker, scientific, and perceptual formats.
- Precision modes let you choose Quick, CSS, Precise, or Token output depending on whether you need readability, implementation syntax, or design-system documentation.
- The converter flags clipped sRGB fallbacks and alpha input so teams understand what is being copied.
- Converted values are copy-ready for CSS, documentation, brand systems, palette reviews, Tailwind config, Sass maps, and project notes.
What the Hue Codex color converter does
The Hue Codex color converter takes one color value, normalizes it to a single rendered color, and shows equivalent values in multiple color formats. You can enter a familiar web value such as #4169E1, rgb(65 105 225), or hsl(225 73% 57%), or use modern formats such as lab(), lch(), oklab(), and oklch().
The converter is designed for practical handoff. It gives teams copy-ready values for CSS, color roles, palette documentation, accessibility review, Tailwind or Sass implementation, and color-model comparison without changing the intended color.
The workspace also shows source handling, alpha caveats, a resolved HEX fallback, contrast context, and next actions so a converted value can move directly into production review.
A color converter is a tool that translates a color from one notation or color model into equivalent values in other formats, such as converting HEX to RGB, RGB to HSL, or OKLCH to HEX.
Supported input and output formats
The converter accepts concrete CSS input including alpha HEX, RGB, HSL, HWB, Lab/LCH, OKLab/OKLCH, supported color() profiles such as Display P3 and XYZ, fixed named colors, and transparent. It returns a broader output set, including HSV as an output-only picker model.
For handoff, Hue Codex also exports CSS variables, JSON, token-style JSON, Tailwind entries, Sass maps, and a plain-language conversion summary.
| Format | Input support | Output support | Useful for |
|---|---|---|---|
| HEX | Yes | Yes | Compact color codes, brand handoff, CSS variables, and color roles. |
| RGB | Yes | Yes | Screen channels, alpha overlays, code generation, and image-style workflows. |
| HSL | Yes | Yes | Manual hue, saturation, and lightness adjustment in CSS. |
| HSV | No | Yes | Picker-style hue, saturation, and value comparison. |
| HWB | Yes | Yes | Whiteness/blackness edits, CSS comparison, and picker-adjacent workflows. |
| XYZ, Lab, and LCH | Yes | Yes | Color science context, perceptual comparison, and documentation. |
| OKLab and OKLCH | Yes | Yes | Modern CSS color workflows, perceptual scales, and color-role tuning. |
| color(srgb), Display P3, and XYZ | Yes | Source plus resolved sRGB fallback | Authored-space inspection, gamut review, and explicit fallback handoff. |
How to choose a precision mode
Color conversions can produce long decimal values, especially in Lab, LCH, OKLab, OKLCH, and XYZ. Hue Codex gives you four precision modes so the same converted color can be readable in a quick note or detailed enough for design-system documentation.
Quick
Best for fast comparison, readable documentation, and human review.
CSS
Best for values that will be pasted into stylesheets and kept reasonably readable.
Precise
Best when you need more decimal detail for audits, QA, or color-model comparison.
Token
Best for color-role files where repeatability matters and values should remain detailed but not noisy.
Best uses for the color converter
The converter is most useful when the color is already known and the job is to express it correctly for another context. It helps teams move between design tools, CSS, accessibility checks, palette documentation, and modern color syntax without guessing values by hand.
CSS use
Convert a design handoff value into rgb(), hsl(), lab(), lch(), oklab(), or oklch() syntax for real CSS use.
Design-system documentation
Record alternate model values beside a canonical HEX value so everyone can discuss the same color clearly.
Palette QA
Inspect hue, lightness, chroma, and channel values when tuning related colors or comparing palette candidates.
Modern color migration
Translate older HEX, RGB, or HSL values into OKLCH and other modern formats before building perceptual ramps.
Conversion notes and accessibility caveats
Equivalent color values can look different in precision, but they should represent the same intended color after conversion and rounding. Small differences can appear when values are clipped into an sRGB browser-safe fallback or rounded for readability. Original Lab, LCH, OKLab, and OKLCH input is preserved in the detected-source panel when a HEX/RGB fallback is needed.
Alpha remains exact in the internal parsed color and is included in functional CSS output. Eight-digit HEX necessarily rounds alpha to one byte. Any contrast preview composites the translucent color over its explicitly labeled reference canvas because transparency has no single appearance without a backdrop.
A converted color is not automatically accessible. Accessibility depends on the final foreground and background pair, text size, non-text UI role, and whether color is being used as the only cue. After conversion, check real pairings in the contrast checker before using a color for text, icons, borders, focused states, or controls.
Use conversion to translate the color value; use contrast and context checks to decide whether the color works for users.
Quick answers
Converter FAQ
What is the Hue Codex color converter?
The Hue Codex color converter is a free online tool that converts one color into HEX, RGB, HSL, HSV, HWB, XYZ, Lab, LCH, OKLab, and OKLCH values, then packages the resolved color for CSS, JSON, token, Tailwind, Sass, and handoff workflows.
Can I convert HEX to RGB?
Yes. Enter a HEX color such as #4169E1 and the converter returns the matching RGB value along with HSL, Lab, LCH, OKLab, OKLCH, and other formats.
Can I convert RGB to HEX or HSL?
Yes. Enter an RGB value such as rgb(65 105 225) and Hue Codex returns equivalent HEX, HSL, HSV, HWB, XYZ, Lab, LCH, OKLab, and OKLCH values.
Does the converter support OKLCH?
Yes. The converter accepts OKLCH input and also returns OKLCH output for every valid color. If an OKLCH source falls outside sRGB, Hue Codex preserves the original parsed value and shows the clipped browser-safe HEX/RGB fallback.
Which color format should I use in CSS?
Use the format that fits the job: HEX for compact stable values, RGB for channel and alpha workflows, HSL for manual hue and lightness edits, and OKLCH for modern perceptual color scales.
Does converting a color make it accessible?
No. Conversion changes the notation, not the accessibility of the final design. Check foreground and background pairs in a contrast checker before using a converted color for readable text or UI states.