#900809

#900809

Color Values

HEX

#900809

RGB

144, 8, 9

HSL

359.6, 89.5%, 29.8%

HSV

359.6, 94.4%, 56.5%

CMYK

0.0%, 94.4%, 93.8%, 43.5%

OKLCH

0.414 0.1645 28.4

Properties

Warm Dark Nearest: darkred

Color Harmonies

Complementary

#900809

#08908F

Analogous

#90084D

#904B08

#900809

Triadic

#900809

#099008

#080990

Split Complementary

#900809

#08904B

#084D90

Tetradic

#900809

#4D9008

#08908F

#4B0890

Color Blindness Simulation

Original

#900809

Protanopia

#555409

Deuteranopia

#5D6709

Tritanopia

#890909

Achromatopsia

#252525

CSS Usage

background-color: #900809;
color: #900809;
border-color: #900809;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FDF2F2
100
#FBE0E0
200
#FBBBBC
300
#F98B8C
400
#F54C4D
500
#F20D0F
600
#C10B0C
700
#9B090A
800
#790707
900
#57090A
950
#370606

Contrast Checker

Text on white

9.44:1

AA Pass AAA Pass

Text on black

2.22:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026