Last updated: March 2, 2026 by Dr. David Park

How to Convert Hex Color Values to RGB

Formula

Each hex pair converts to a decimal value 0-255.
HSL lightness = (max + min) / 510 × 100.

Hex color codes represent RGB values in hexadecimal. Each pair of hex digits corresponds to the red, green, and blue channels. This calculator takes the decimal equivalents and shows the RGB values plus HSL lightness.

For example, hex #FF5733 has red=FF(255), green=57(87), blue=33(51) in decimal.

Common use cases:

  • Web development color code conversion
  • CSS styling and theming
  • Digital design color analysis

Frequently Asked Questions

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Dr. David Park

Applied Mathematician, PhD Mathematics

David holds a PhD in Applied Mathematics from MIT. He has published research on numerical methods and computational algorithms used in engineering and scientific calculators.

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