Practical color guide
HEX to RGB: How to Convert Color Codes for CSS
Convert HEX color codes to RGB values, understand the formula, and copy ready-to-use CSS examples.
Open related toolHow HEX to RGB works
A HEX color contains three pairs of hexadecimal digits. The first pair is red, the second is green and the third is blue. Each pair converts to a number from 0 to 255.
Example conversion
#3366FF becomes rgb(51, 102, 255). This means 51 red, 102 green and 255 blue.
When RGB is useful
RGB is helpful for dynamic CSS, JavaScript color manipulation, canvas work and rgba() transparency values.
Frequently asked questions
Can every HEX color be converted to RGB?
Yes. Every six-digit HEX color maps directly to one RGB value.
Is RGB better than HEX?
Not always. HEX is shorter, while RGB is more readable when you need channel values or transparency.