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Color Converter — Hex, RGB, HSL, CMYK

Convert between every web and print colour format instantly, pick with a visual picker, and grab ready-to-paste CSS.

Visual picker
Click to pick

Presets

Colour Formats

HEX
HEX 8
RGB
RGBA
HSL
HSLA
HSV
CMYK

Contrast against


vs white

vs black

Which colour format should I use?

  • HEX (#RRGGBB) — the classic web format. Compact, case-insensitive, and widely supported.
  • HEX 8 (#RRGGBBAA) — includes alpha. Modern browsers support it; older tools may not.
  • RGB / RGBA — red-green-blue with optional alpha (0–1). Easy to reason about numerically.
  • HSL / HSLA — hue-saturation-lightness. Best for programmatic colour adjustments ("a 20% darker version").
  • HSV / HSB — same hue as HSL but uses value (brightness). Favoured by design tools.
  • CMYK — cyan-magenta-yellow-key (black). For print; screen conversion is approximate because CMYK depends on the specific ink set.

WCAG contrast ratings

The contrast panels show the ratio between the chosen colour and pure white/black, per WCAG 2.1. Targets for body text:

  • AAA — 7:1 — enhanced contrast, recommended.
  • AA — 4.5:1 — minimum for normal-size text.
  • AA Large — 3:1 — minimum for 18pt or 14pt-bold text.
  • Fail — below 3:1. Not accessible.

Tips

  • All formats are linked — edit any one and the others update instantly.
  • Use the alpha slider to create transparent CSS values.
  • Copy any format with one click — ready to paste into your stylesheet.
  • CMYK is a rough preview. For print-accurate colour, work in your design tool with an ICC profile.
ABOUT THIS TOOL

What is Color Converter?

The Color Converter tool by D&D Technology allows developers and designers to convert colors seamlessly between various formats such as Hex, RGB, HSL, HSV, and CMYK. This tool is essential for anyone involved in digital design, as it ensures that color choices are not only accurate but also visually appealing across different platforms. With built-in contrast checks, users can easily verify that their color combinations are accessible and meet design standards, enhancing overall user experience.

One of the standout features of the Color Converter is its preset swatches, which provide users with a quick reference for popular color palettes. This saves time and effort, allowing designers to focus on creativity rather than technical details. The tool is especially beneficial for web developers, graphic designers, and anyone working in visual media who needs to maintain consistency in their color choices.

Ideal for startups, small businesses, and enterprises, the Color Converter is a must-have in your design toolkit. Whether you are creating a new website, developing a mobile app, or designing marketing materials, this tool simplifies the color management process, ensuring your projects remain visually cohesive.

Experience the convenience and efficiency of the Color Converter today. Visit our website to start using this free online tool and elevate your design projects with ease. Contact us for a free consultation or explore our services to see how D&D Technology can support your digital transformation journey.

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