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Convert Between Color Formats

Built by Kevin Glover · @gloverbuilds · Verified formula

Convert between HEX, RGB, HSL, and CMYK color formats. Preview colors and copy CSS-ready values.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Color Format Guide
When to Use Each Format

Color Format Guide

HEX: Web standard (#4C6DFF). 6 hex digits for RGB channels. RGB: Screen display — Red, Green, Blue values 0-255. HSL: Human-intuitive — Hue (color), Saturation (intensity), Lightness (brightness). Best for creating palettes. CMYK: Print standard — Cyan, Magenta, Yellow, Key (black). Required for print design. Screen colors (RGB) do not translate perfectly to print (CMYK) — always proof print designs.

When to Use Each Format

Web development: HEX or RGB in CSS. Design tools (Figma, Sketch): HEX for precision, HSL for adjusting shades. Print design: CMYK always. Accessibility: Use HSL — adjusting lightness ensures sufficient contrast ratios (WCAG requires 4.5:1 for normal text).

⚡ CalcWolf Insight

Color converter tools get 100K+ combined monthly searches from designers and developers. This audience is technically sophisticated and professionally employed — valuable for design tool and dev tool advertisers ($3-10 CPC).

Frequently asked questions

What is the difference between RGB and CMYK?▾

RGB is additive (light-based, for screens) — mixing all colors gives white. CMYK is subtractive (ink-based, for print) — mixing all gives black. Bright neon colors possible on screen (RGB) cannot be reproduced in print (CMYK) — they appear duller. Always design in CMYK if the final output is print.

How do I convert HEX to RGB?▾

Each pair of hex digits represents one RGB channel. #4C6DFF → 4C=76 red, 6D=109 green, FF=255 blue → rgb(76, 109, 255). In code: parseInt("4C", 16) = 76.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →