RGB to HEX Converter
Convert RGB and RGBA values into Hexadecimal color codes instantly. Use the sliders or type the numbers to get your color code.
Recent Conversions
How to Use RGB to HEX Converter
Move the sliders or type the red, green, blue and opacity values — you get the HEX code instantly, ready to paste into CSS or a design tool.
Set Red, Green & Blue
Use the sliders or type numbers from 0 to 255.
Add Opacity (Optional)
Change A to make the colour see-through.
Copy the HEX
Copy the HEX code or the RGB/RGBA value.
Input
Sliders or numbers
Output
6 or 8 digit HEX
Preview
Live
History
Recent conversions
Privacy
Runs in your browser
Price
100% free
RGB to HEX Converter: Quick Reference
The key numbers and facts in one place.
| rgb(255, 255, 255) | #FFFFFF |
|---|---|
| rgb(0, 0, 0) | #000000 |
| rgb(0, 128, 0) | #008000 |
| rgb(37, 99, 235) | #2563EB |
| rgba(0, 0, 0, 0.5) | #00000080 |
What Can You Use It For?
Popular ways people use RGB to HEX Converter.
CSS
Most stylesheets use HEX codes.
Brand Colours
Turn RGB values from a brand guide into HEX.
From Photo Apps
Convert RGB from image editors.
Learning
See how colour codes work.
Tips for the Best Result
- Each RGB value goes from 0 to 255.
- With opacity below 1, the HEX code gets two extra digits.
- Check text readability with the contrast preview.
Frequently Asked Questions
Quick answers about RGB to HEX Converter.
Turn each number (0–255) into two base-16 digits and join them: rgb(37, 99, 235) → #2563EB.
Opacity becomes two more digits at the end, e.g. 0.5 → 80.
Yes, all modern browsers do.
No. #2563eb and #2563EB are the same.
Yes.
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