#0000B4

#0000B4

Color Values

HEX

#0000B4

RGB

0, 0, 180

HSL

240.0, 100.0%, 35.3%

HSV

240.0, 100.0%, 70.6%

CMYK

100.0%, 100.0%, 0.0%, 29.4%

OKLCH

0.348 0.2412 264.1

Properties

Cool Dark Nearest: mediumblue

Color Harmonies

Complementary

#0000B4

#B4B400

Analogous

#005AB4

#5A00B4

#0000B4

Triadic

#0000B4

#B40000

#00B400

Split Complementary

#0000B4

#B45A00

#5AB400

Tetradic

#0000B4

#B4005A

#B4B400

#00B45A

Color Blindness Simulation

Original

#0000B4

Protanopia

#000088

Deuteranopia

#00007E

Tritanopia

#00665E

Achromatopsia

#0D0D0D

CSS Usage

background-color: #0000B4;
color: #0000B4;
border-color: #0000B4;
Nearest Tailwind: Violet 700 #6D28D9

Tailwind Shades

50
#F1F1FE
100
#DEDEFC
200
#B8B8FF
300
#8585FF
400
#4242FF
500
#0000FF
600
#0000CC
700
#0000A3
800
#000080
900
#05055C
950
#03033A

Contrast Checker

Text on white

12.66:1

AA Pass AAA Pass

Text on black

1.66:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026