#B31615

#B31615

Color Values

HEX

#B31615

RGB

179, 22, 21

HSL

0.4, 79.0%, 39.2%

HSV

0.4, 88.3%, 70.2%

CMYK

0.0%, 87.7%, 88.3%, 29.8%

OKLCH

0.4902 0.1889 28.1

Properties

Warm Dark Nearest: RAL 3016 Coral Red

Color Harmonies

Complementary

#B31615

#15B2B3

Analogous

#B31563

#B36515

#B31615

Triadic

#B31615

#15B316

#1615B3

Split Complementary

#B31615

#15B365

#1563B3

Tetradic

#B31615

#63B315

#15B2B3

#6515B3

Color Blindness Simulation

Original

#B31615

Protanopia

#6F6E15

Deuteranopia

#788415

Tritanopia

#AB1515

Achromatopsia

#373737

CSS Usage

background-color: #B31615;
color: #B31615;
border-color: #B31615;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FCF2F2
100
#F9E1E1
200
#F8BFBF
300
#F29291
400
#EB5756
500
#E41C1B
600
#B71615
700
#921211
800
#720E0D
900
#530E0E
950
#340909

Contrast Checker

Text on white

6.9:1

AA Pass AAA Fail

Text on black

3.04:1

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