#90151D

#90151D

Color Values

HEX

#90151D

RGB

144, 21, 29

HSL

356.1, 74.5%, 32.4%

HSV

356.1, 85.4%, 56.5%

CMYK

0.0%, 85.4%, 79.9%, 43.5%

OKLCH

0.4223 0.1564 24.6

Properties

Warm Dark Nearest: firebrick 4

Color Harmonies

Complementary

#90151D

#159088

Analogous

#90155B

#904B15

#90151D

Triadic

#90151D

#1D9015

#151D90

Split Complementary

#90151D

#15904B

#155B90

Tetradic

#90151D

#5B9015

#159088

#4B1590

Color Blindness Simulation

Original

#90151D

Protanopia

#5B5A1B

Deuteranopia

#626B1B

Tritanopia

#8A1A19

Achromatopsia

#303030

CSS Usage

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

Tailwind Shades

50
#FCF3F3
100
#F8E2E3
200
#F6C1C4
300
#EF949A
400
#E75A63
500
#DE212D
600
#B21A24
700
#8E151D
800
#6F1016
900
#511014
950
#330A0D

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