Free 100% In-Browser Tool

RGB to HEX Color Converter

Convert RGB color values to HEX color codes with real-time swatch preview, HSL values, and contrast recommendations.

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How to Use the RGB to HEX Color Converter – Hexadecimal Codes

  1. 1Adjust the Red (0–255), Green (0–255), and Blue (0–255) sliders or numeric inputs.
  2. 2Or type a 6-digit HEX color code (e.g., #2E8B57) directly into the HEX field.
  3. 3Inspect the live color swatch preview and corresponding HSL values.
  4. 4Click 'Copy Result' to paste your HEX or CSS rgb() code into your stylesheet.

Formula & How It Works

RGB to Hexadecimal Conversion Math

HEX = '#' + R.toString(16).padStart(2,'0') + G.toString(16).padStart(2,'0') + B.toString(16).padStart(2,'0')

Each color channel (0 to 255) is converted to a two-digit hexadecimal base-16 string padded with a leading zero. Concatenating the three pairs prefixed by '#' produces the standard 6-digit web hex code.

Worked Examples

Sea Green Accent Color

Input: RGB(46, 139, 87)

Explanation: 46 = 2E, 139 = 8B, 87 = 57, resulting in #2E8B57.

Result: HEX: #2E8B57 | HSL: hsl(146, 50%, 36%)

Pure White Color

Input: RGB(255, 255, 255)

Explanation: All three channels at maximum saturation yield pure white #FFFFFF.

Result: HEX: #FFFFFF | HSL: hsl(0, 0%, 100%)

Pure Black Color

Input: RGB(0, 0, 0)

Explanation: All three channels at zero yield pure black #000000.

Result: HEX: #000000 | HSL: hsl(0, 0%, 0%)

Vibrant Cyan UI Color

Input: RGB(6, 182, 212)

Explanation: Modern Tailwind cyan-500 palette color.

Result: HEX: #06B6D4 | HSL: hsl(188, 95%, 43%)

Frequently Asked Questions

How do you convert RGB to HEX?▼

Convert each RGB value (0–255) to a two-digit base-16 hexadecimal number, and join them with a leading hash symbol '#'.

What is the difference between RGB and HEX?▼

RGB defines colors using decimal values from 0 to 255 for Red, Green, and Blue. HEX expresses the identical values using 6 hexadecimal characters.

Can I enter a HEX code to find its RGB values?▼

Yes, you can type a HEX code into the HEX box to see its RGB values, sliders, and HSL equivalents update automatically.

How does the text contrast indicator work?▼

The swatch calculates perceived luminance via the YIQ color formula to recommend whether white or black text provides optimal legibility.

What is HSL in color theory?▼

HSL stands for Hue (0–360° color wheel), Saturation (0–100% color intensity), and Lightness (0–100% brightness).

Does this tool work client-side?▼

Yes, all color calculations and live preview rendering occur 100% locally in your web browser.

Last reviewed & updated: 2026-11-01
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