#90151C

#90151C

Color Values

HEX

#90151C

RGB

144, 21, 28

HSL

356.6, 74.5%, 32.4%

HSV

356.6, 85.4%, 56.5%

CMYK

0.0%, 85.4%, 80.6%, 43.5%

OKLCH

0.4222 0.1565 25.0

Properties

Warm Dark Nearest: firebrick 4

Color Harmonies

Complementary

#90151C

#159089

Analogous

#90155A

#904C15

#90151C

Triadic

#90151C

#1C9015

#151C90

Split Complementary

#90151C

#15904C

#155A90

Tetradic

#90151C

#5A9015

#159089

#4C1590

Color Blindness Simulation

Original

#90151C

Protanopia

#5B5A1A

Deuteranopia

#626B1A

Tritanopia

#8A1919

Achromatopsia

#303030

CSS Usage

background-color: #90151C;
color: #90151C;
border-color: #90151C;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FCF3F3
100
#F8E2E3
200
#F6C1C4
300
#EF9499
400
#E75A62
500
#DE212B
600
#B21A23
700
#8E151C
800
#6F1016
900
#511014
950
#330A0C

Contrast Checker

Text on white

9.09:1

AA Pass AAA Pass

Text on black

2.31:1

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