#42100F

#42100F

Color Values

HEX

#42100F

RGB

66, 16, 15

HSL

1.2, 63.0%, 15.9%

HSV

1.2, 77.3%, 25.9%

CMYK

0.0%, 75.8%, 77.3%, 74.1%

OKLCH

0.2593 0.0776 25.3

Properties

Warm Dark Nearest: RAL 8012 Red Brown

Color Harmonies

Complementary

#42100F

#0F4142

Analogous

#420F28

#422A0F

#42100F

Triadic

#42100F

#0F4210

#100F42

Split Complementary

#42100F

#0F422A

#0F2842

Tetradic

#42100F

#28420F

#0F4142

#2A0F42

Color Blindness Simulation

Original

#42100F

Protanopia

#2C2C0F

Deuteranopia

#2F330F

Tritanopia

#3F0F0F

Achromatopsia

#1B1B1B

CSS Usage

background-color: #42100F;
color: #42100F;
border-color: #42100F;
Nearest Tailwind: Red 950 #450A0A

Tailwind Shades

50
#FBF3F3
100
#F7E4E4
200
#F2C6C5
300
#E89D9B
400
#DC6865
500
#D0322F
600
#A62826
700
#85201E
800
#681918
900
#4C1615
950
#300E0D

Contrast Checker

Text on white

16.0:1

AA Pass AAA Pass

Text on black

1.31:1

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