#420000

#420000

Color Values

HEX

#420000

RGB

66, 0, 0

HSL

0.0, 100.0%, 12.9%

HSV

0.0, 100.0%, 25.9%

CMYK

0.0%, 100.0%, 100.0%, 74.1%

OKLCH

0.2381 0.0977 29.2

Properties

Warm Dark Nearest: RAL 8012 Red Brown

Color Harmonies

Complementary

#420000

#004242

Analogous

#420021

#422100

#420000

Triadic

#420000

#004200

#000042

Split Complementary

#420000

#004221

#002142

Tetradic

#420000

#214200

#004242

#210042

Color Blindness Simulation

Original

#420000

Protanopia

#252500

Deuteranopia

#292E00

Tritanopia

#3F0000

Achromatopsia

#0E0E0E

CSS Usage

background-color: #420000;
color: #420000;
border-color: #420000;
Nearest Tailwind: Red 950 #450A0A

Tailwind Shades

50
#FEF1F1
100
#FCDEDE
200
#FFB8B8
300
#FF8585
400
#FF4242
500
#FF0000
600
#CC0000
700
#A30000
800
#800000
900
#5C0505
950
#3A0303

Contrast Checker

Text on white

17.05:1

AA Pass AAA Pass

Text on black

1.23:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026