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Color Converter

Name: Color Converter - WebUtil
Author: WebUtil

Convert between HEX, RGB, HSL, and named CSS colors with live preview.

HEX

RGB

HSL

What Is a Color Converter?

A color converter is a tool that translates color values between different color models. The most common formats are HEX, RGB, and HSL. Web developers, designers, and digital artists use a color code converter daily to ensure consistent colors across CSS, design mocks, and image assets. Our free HEX to RGB converter runs entirely in your browser — your colors never leave your device.

HEX, RGB, and HSL Explained

HEX

Six-digit hexadecimal values representing colors on screens. The format is #RRGGBB, where each pair defines the intensity of red, green, and blue.

RGB

Defines colors by their red, green, and blue components as integers from 0 to 255. Written as rgb(255, 0, 0) for pure red.

HSL

Describes colors by hue (0-360° on the color wheel), saturation (0-100%), and lightness (0-100%). More intuitive for creating harmonious color schemes.

Why Developers Use Color Converters

CSS Consistency — Convert design mock HEX values to RGB or HSL for use in CSS declarations.
Theme Building — Generate lighter and darker variants of a base color by adjusting HSL lightness.
Accessibility — Convert colors to check contrast ratios and ensure WCAG compliance.
Cross-Platform Work — Translate color formats between design tools, code editors, and image software.

How to Use This Color Converter

To convert a color, simply click the color picker and choose any color, or type a HEX code (with or without the # prefix) into the text field. The tool instantly computes the RGB and HSL equivalents and displays them in read-only fields. The color preview updates in real time, giving you a live visual of the selected color. Use the Copy button to copy any format to your clipboard.

Color representation in digital design and web development spans several mathematical color spaces and CSS standards: HEX, RGB, HSL, and HSV. RGB (Red, Green, Blue) is an additive color model based on digital displays where each channel is expressed from 0 to 255. HEX represents RGB values compactly in hexadecimal (e.g. #8B5CF6). HSL (Hue, Saturation, Lightness) models color in a cylindrical coordinate system that mirrors human perception: Hue represents the color wheel angle (0-360 deg), Saturation represents color intensity (0-100%), and Lightness represents brightness from black to white. HSL makes creating color palettes, hover states, and dark mode themes intuitive because you can adjust brightness or saturation without altering the underlying hue. Web accessibility standards (WCAG 2.1) require minimum contrast ratios (4.5:1 for standard text, 3:1 for large text) between foreground text and background colors to ensure readability for visually impaired users. WebUtil's Color Converter translates colors across HEX, RGB, HSL, and HSV formats with live visual previews, alpha transparency support, and one-click CSS code generation.

How to Do This in Code

function hexToRgb(hex) {
  const r = parseInt(hex.slice(1,3), 16);
  const g = parseInt(hex.slice(3,5), 16);
  const b = parseInt(hex.slice(5,7), 16);
  return { r, g, b };
}

def hex_to_rgb(hex):
  h = hex.lstrip('#')
  return tuple(int(h[i:i+2], 16) for i in (0, 2, 4))

import "fmt"

func hexToRGB(hex string) (r, g, b int) {
  fmt.Sscanf(hex, "#%02x%02x%02x", &r, &g, &b)
  return
}

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Related Guides & Tutorials

Converters 4 min read

Color Converter Guide: HEX, RGB, and HSL Explained

A complete guide to understanding color models in web development, and how to convert between HEX, RGB, and HSL formats.

Color Converter FAQ

What is the difference between RGB, HEX, and HSL color models?

RGB and HEX describe how computer monitors emit light (Red, Green, Blue). HSL describes colors how humans perceive them: Hue (tint), Saturation (intensity), and Lightness (brightness).

Why do UI designers and developers prefer HSL over HEX for styling?

HSL allows developers to create cohesive color schemes, hover states, and dark mode variations easily by tweaking lightness or saturation percentages while keeping the hue constant.

How do I check if a color combination meets WCAG accessibility standards?

WCAG 2.1 requires a contrast ratio of at least 4.5:1 for standard body text and 3:1 for large text (18pt or 14pt bold). Check the calculated contrast score before finalizing your UI colors.

What does the alpha channel (RGBA/HEX8) represent?

The alpha channel defines color opacity from 0 (completely transparent) to 1 or 100% (fully opaque), allowing background layers to show through.

Can I copy CSS-ready color variables directly from this tool?

Yes. WebUtil provides ready-to-paste CSS color declarations in HEX, rgb(), and hsl() formats with a single click.