#900201

#900201

Color Values

HEX

#900201

RGB

144, 2, 1

HSL

0.4, 98.6%, 28.4%

HSV

0.4, 99.3%, 56.5%

CMYK

0.0%, 98.6%, 99.3%, 43.5%

OKLCH

0.4111 0.1675 29.3

Properties

Warm Dark Nearest: darkred

Color Harmonies

Complementary

#900201

#018F90

Analogous

#900147

#904901

#900201

Triadic

#900201

#019002

#020190

Split Complementary

#900201

#019049

#014790

Tetradic

#900201

#479001

#018F90

#490190

Color Blindness Simulation

Original

#900201

Protanopia

#525101

Deuteranopia

#5B6501

Tritanopia

#890101

Achromatopsia

#202020

CSS Usage

background-color: #900201;
color: #900201;
border-color: #900201;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FEF1F1
100
#FCDEDE
200
#FFB9B8
300
#FE8685
400
#FE4544
500
#FD0302
600
#CB0301
700
#A20201
800
#7F0201
900
#5B0605
950
#3A0403

Contrast Checker

Text on white

9.57:1

AA Pass AAA Pass

Text on black

2.19:1

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