HEX to RGB Converter Online — CSS Color Code Converter

Convert HEX color codes (#ffffff) to RGB and RGBA formats online. Live color preview, CSS snippets, and opacity alpha transparency support.

✓ Converts 3-digit (#fff), 6-digit (#ffffff), and 8-digit (#ffffffff) hex codes

✓ Outputs rgb(r, g, b) and rgba(r, g, b, a) CSS functions

✓ Live color swatch preview with contrast validation

✓ One-click copy for CSS stylesheets and Tailwind config

How It Works

  1. Type or paste a HEX color code (e.g. #3b82f6 or 3b82f6).
  2. The hexadecimal pairs for Red, Green, and Blue are converted to 0-255 decimal values.
  3. Copy the resulting rgb() string directly into your CSS.