Developer
5 min read
February 16, 2026

HEX, RGB & HSL Explained: How to Convert Between Color Formats

Designer gave you a HEX code but your code needs RGB? Here's what each color format means — and how to convert between them instantly.

Three Ways to Describe the Same Color

  • HEX (#F59E0B): A six-digit hexadecimal code — compact, common in CSS and design tools
  • RGB (rgb(245, 158, 11)): Red, Green, Blue values from 0–255 — intuitive for screens, which mix light
  • HSL (hsl(38, 92%, 50%)): Hue, Saturation, Lightness — intuitive for adjusting a color (want it lighter? just raise the L value)

    • All three describe identical colors — they're just different ways of writing the same value, each suited to different tasks.

    When to Use Which

  • HEX: Quick reference, copying from design files, CSS shorthand
  • RGB: When working with code that manipulates individual color channels (e.g., canvas, image processing)
  • HSL: When you need to programmatically lighten, darken, or adjust saturation — much easier to reason about than RGB

    • How to Convert Colors for Free

  • Open the Color Converter
  • Pick a color visually with the color picker, or type a HEX code directly
  • Instantly see the equivalent RGB and HSL values
  • Adjust individual R, G, B values with the number inputs if needed
  • Copy any format with one click

    • Frequently Asked Questions

    Why does my color look different on different screens?

    Color rendering depends on the display's calibration and color profile — the underlying HEX/RGB/HSL values are identical, but screens can render them slightly differently.

    Can I convert from RGB or HSL back to HEX?

    Yes — adjust the R, G, B number inputs and the tool instantly recalculates the equivalent HEX and HSL values.

    Is this useful for web design and CSS?

    Absolutely — copy any format directly into your stylesheet, design tool, or codebase.

    Related Tools

    Building a style guide? Pair this with the Markdown to HTML Converter for documentation, or the Unit Converter for layout measurements.

    Written by the GMC Tools team

    Try These Tools

    Color Converter

    Convert colors between HEX, RGB, and HSL instantly

    Try free

    Unit Converter

    Convert length, weight, temperature, speed, area & volume

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    Markdown to HTML Converter

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