HEX ↔ RGB Converter

The HEX RGB Converter changes colours between HEX and RGB in both directions with a live preview. It is for designers and developers translating a colour between the two most common web formats.

HEX and RGB describe the same colour differently, and converting by hand is fiddly. Doing it locally is instant in either direction, with a swatch to confirm the result.

1. Pick a colour, or type a HEX or RGB value.
2. The converter fills in the other format automatically.
3. Check the live preview swatch.
4. Copy the value you need.

• Two-way HEX and RGB conversion
• Live colour preview
• Colour picker and manual entry
• Runs in the browser — HEX ↔ RGB

• Translating a HEX brand colour into RGB for CSS
• Converting an RGB value from a design tool to HEX
• Checking that two colour notations match
• Building an rgba value from a HEX starting point

• Use RGB or rgba when you need an alpha channel, since standard HEX has none.
• Keep HEX values to the full six digits to avoid ambiguity.
• Confirm the swatch matches your source colour after converting.

• Dropping the leading hash or a digit from a HEX value, which changes the colour.
• Confusing RGB channel order or exceeding the 0–255 range.
• Assuming HEX carries opacity; alpha needs rgba or an eight-digit HEX.