#B2151C

#B2151C

Color Values

HEX

#B2151C

RGB

178, 21, 28

HSL

357.3, 78.9%, 39.0%

HSV

357.3, 88.2%, 69.8%

CMYK

0.0%, 88.2%, 84.3%, 30.2%

OKLCH

0.4883 0.1878 26.4

Properties

Warm Dark Nearest: firebrick

Color Harmonies

Complementary

#B2151C

#15B2AB

Analogous

#B2156B

#B25C15

#B2151C

Triadic

#B2151C

#1CB215

#151CB2

Split Complementary

#B2151C

#15B25C

#156BB2

Tetradic

#B2151C

#6BB215

#15B2AB

#5C15B2

Color Blindness Simulation

Original

#B2151C

Protanopia

#6E6D1A

Deuteranopia

#77831A

Tritanopia

#AA1919

Achromatopsia

#373737

CSS Usage

background-color: #B2151C;
color: #B2151C;
border-color: #B2151C;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FCF2F3
100
#F9E1E2
200
#F7BFC2
300
#F29296
400
#EB565D
500
#E41B24
600
#B6161D
700
#921117
800
#720D12
900
#530E11
950
#34090B

Contrast Checker

Text on white

6.96:1

AA Pass AAA Fail

Text on black

3.02:1

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