What is the hex code for Blue?

Blue is #0000FF (oklch(0.452 0.313 264.1) in OKLCH, Lab 29.57 68.29 -112.03).

Is Blue readable on white?

Against white, Blue measures 8.59:1 WCAG (AAA) and APCA Lc 86. Against #0F172A: 2.08:1, Fail.

How do I use Blue in Colorise Pro?

Open Blue in the Colorise Pro color picker for harmonies, or seed Studio with #0000FF to grow a full OKLCH token ramp.

Named color · #0000FF

Blue

#0000FF

oklch(0.452 0.313 264.1)

Lab 29.57 68.29 -112.03

HEX

#0000FF

OKLCH

oklch(0.452 0.313 264.1)

CIE Lab

29.57 68.29 -112.03

RGB

0 0 255

Open in Picker Open in Studio Check contrast All color codes

Readability

On white

8.59:1 · Lc 86

AAA

On #0F172A

2.08:1 · Lc 15

Fail

Nearest named siblings

Closest dictionary entries by perceptual Lab distance.

About Blue

Blue sits at oklch(0.452 0.313 264.1) in OKLCH — lightness, chroma, and hue expressed perceptually — and #0000FF in sRGB. Use it as a seed in Colorise Pro Studio to grow a token ramp, or send it to the picker to explore harmonies and scales. Browse more named colors in the color names directory.

FAQ

What is the hex code for Blue?: #0000FF — also oklch(0.452 0.313 264.1) and Lab 29.57 68.29 -112.03.
Can I use Blue for text on white?: On white: 8.59:1 (AAA), APCA Lc 86. On dark ink: 2.08:1 (Fail). Check pairs in the contrast tool.

Named color · #0000FF

Blue

#0000FF

oklch(0.452 0.313 264.1)

Lab 29.57 68.29 -112.03

HEX

#0000FF

OKLCH

oklch(0.452 0.313 264.1)

CIE Lab

29.57 68.29 -112.03

RGB

0 0 255

Open in Picker Open in Studio Check contrast All color codes

Readability

On white

8.59:1 · Lc 86

AAA

On #0F172A

2.08:1 · Lc 15

Fail

Nearest named siblings

Closest dictionary entries by perceptual Lab distance.

About Blue

FAQ

What is the hex code for Blue?: #0000FF — also oklch(0.452 0.313 264.1) and Lab 29.57 68.29 -112.03.
Can I use Blue for text on white?: On white: 8.59:1 (AAA), APCA Lc 86. On dark ink: 2.08:1 (Fail). Check pairs in the contrast tool.