What is the hex code for Blue?

The hex code for Blue is #0000FF. In RGB that is rgb(0, 0, 255), and in HSL it is hsl(240, 100%, 50%).

What RGB values make Blue?

Blue is 0 red, 0 green, and 255 blue, written as rgb(0, 0, 255).

Blue scores 8.59:1 against white. WCAG AA needs 4.5:1 for body text, so it passes.

Yes. You can write color: blue directly in CSS, which every browser resolves to #0000FF.

#0000FF

Blue is a blue tone at #0000FF. It sits at 240 degrees on the color wheel with 100% saturation and 50% lightness.

Color values

Tints mix Blue with white, shades mix it with black. Use the light end for backgrounds and the dark end for text that has to stay readable.

Tint 80%

#CCCCFF

Tint 60%

#9999FF

Tint 40%

#6666FF

Tint 20%

#3333FF

Base

#0000FF

Shade 20%

#0000CC

Shade 40%

#000099

Shade 60%

#000066

Shade 80%

#000033

On white

Sample text

8.59:1

Passes AAA for body text

On black

Sample text

2.44:1

Fails WCAG for text

Check a specific pairing in the contrast checker.

Frequently asked

What is the hex code for Blue?: The hex code for Blue is #0000FF. In RGB that is rgb(0, 0, 255), and in HSL it is hsl(240, 100%, 50%).
What RGB values make Blue?: Blue is 0 red, 0 green, and 255 blue, written as rgb(0, 0, 255).
Is Blue readable as text on a white background?: Blue scores 8.59:1 against white. WCAG AA needs 4.5:1 for body text, so it passes.
Is Blue a valid CSS color name?: Yes. You can write color: blue directly in CSS, which every browser resolves to #0000FF.