RGB to HEX
Convert red, green, and blue values into a hex color code, with a live swatch and an optional alpha channel. Everything runs in your browser.
#3b82f6#3b82f6ffrgb(59, 130, 246)About RGB to HEX
RGB describes a color with separate red, green, and blue channels from 0 to 255. Hex packs those same three channels into a short code that starts with a hash, which is the format most CSS and design tools expect.
Enter your RGB values and this tool shows the matching hex code, a hex code with an alpha channel, and a ready to use CSS string, along with a swatch so you can confirm the color.
How to Use
- Enter the red, green, and blue values from 0 to 255.
- Adjust alpha if you need transparency.
- Read the hex code and copy it with one click.
- Use the HEX to RGB tool to convert the other way.
Frequently Asked Questions
What range do the RGB values use?
Each of red, green, and blue runs from 0 to 255. Values outside that range are clamped so the result stays valid.
Can I include transparency?
Yes. Set the alpha from 0 to 1 and the tool shows an 8 digit hex code that includes the alpha channel.
Is the tool private?
Yes. The conversion happens in your browser and nothing is uploaded.
About Matt George
I'm Matt George, a software engineer in the startup space. I run my own shop building software for early-stage founders, and I love making free tools and experiences that people actually use. Enjoy using RGB to HEX!