Both shorthand (#RGB, #RGBA) and full format (#RRGGBB, #RRGGBBAA). The # symbol is optional. 8-digit HEX includes alpha transparency in the last two characters.

8-digit HEX adds two characters for alpha (opacity) after the standard 6-digit color. Example: #3498DBCC has 80% opacity (CC in hex = 204 = ~80% of 255).

Red, Green, and Blue values each range from 0 to 255. Alpha (opacity) ranges from 0 (fully transparent) to 1 (fully opaque) in CSS rgba() format.

Enable the 'Add Alpha' toggle and adjust the slider. This lets you add transparency to any 6-digit HEX code, outputting rgba() format for CSS.

RGB has 3 values (red, green, blue). RGBA adds a 4th value for alpha (transparency). Use rgba(52, 152, 219, 0.5) for 50% opacity, or rgb(52, 152, 219) for solid color.

Yes! Use the batch conversion panel. Enter multiple HEX codes separated by commas or newlines and convert them all simultaneously.

RGB is needed when you want transparency (rgba) or when calculating color values programmatically. HEX is more compact but doesn't support transparency in older browsers.

Yes. All conversion happens locally in your browser using JavaScript. No color data is sent to any server - your work stays completely private.

Divide each RGB value by 255 and multiply by 100. Example: RGB(52, 152, 219) becomes roughly (20%, 60%, 86%). Some design tools use this percentage format.

Standard 6-digit HEX (#RRGGBB) has red, green, blue. The 8-digit version (#RRGGBBAA) adds two characters for alpha (transparency). The last two digits (00-FF) represent opacity from 0% to 100%.

RGB Result

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