How to Convert RGB to HEX Online for Free — Colour Tool
Convert RGB or RGBA values to hex colour codes for CSS and design tools — live preview and instant copy in your browser.
Convert RGB to Hex Online — Free & Private
Convert RGB or RGBA values back to hex colour codes for CSS, HTML, and design tools — enter individual R, G, B channels and get the corresponding hex string instantly, all in your browser.
Design tools and CSS preprocessors often provide RGB values that need to be converted to hex for use in HTML, CSS variables, or colour token systems. This converter handles RGB and RGBA with a live swatch.
How to Convert RGB to Hex Online
Step 1: Enter R, G, B Values
Type the red, green, and blue values (each 0–255) into the respective input fields. Optionally set an alpha value for RGBA.
Step 2: View the Hex Output
The corresponding hex code appears instantly in the output field as you type, with a live colour swatch preview.
Step 3: Copy the Hex Code
Click Copy to grab the #RRGGBB or #RRGGBBAA hex string ready for use in CSS, Figma, Sketch, or any design tool.
Step 4: Done
Paste the hex code into your stylesheet, component library, or colour token system.
Why Use This Converter?
Completely Private
All conversions happen locally — no server receives your colour values.
Instant Conversion
Hex code appears immediately as you adjust RGB sliders or type values.
Live Colour Swatch
See a real-time preview of the colour as you adjust the RGB channel values.
Convert RGB to Hex — No Upload Required
Runs entirely in your browser — no upload, no account, no waiting.
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