#90180F

#90180F

Color Values

HEX

#90180F

RGB

144, 24, 15

HSL

4.2, 81.1%, 31.2%

HSV

4.2, 89.6%, 56.5%

CMYK

0.0%, 83.3%, 89.6%, 43.5%

OKLCH

0.423 0.156 29.6

Properties

Warm Dark Nearest: maroon

Color Harmonies

Complementary

#90180F

#0F8790

Analogous

#900F47

#90590F

#90180F

Triadic

#90180F

#0F9018

#180F90

Split Complementary

#90180F

#0F9059

#0F4790

Tetradic

#90180F

#47900F

#0F8790

#590F90

Color Blindness Simulation

Original

#90180F

Protanopia

#5C5B11

Deuteranopia

#636C12

Tritanopia

#8A1313

Achromatopsia

#313131

CSS Usage

background-color: #90180F;
color: #90180F;
border-color: #90180F;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FDF3F2
100
#F9E3E1
200
#F8C2BE
300
#F39790
400
#ED5F54
500
#E72718
600
#B91F13
700
#94190F
800
#73130C
900
#54120D
950
#350B08

Contrast Checker

Text on white

9.04:1

AA Pass AAA Pass

Text on black

2.32:1

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