#B54037

#B54037

Color Values

HEX

#B54037

RGB

181, 64, 55

HSL

4.3, 53.4%, 46.3%

HSV

4.3, 69.6%, 71.0%

CMYK

0.0%, 64.6%, 69.6%, 29.0%

OKLCH

0.5343 0.1536 27.8

Properties

Warm Dark Nearest: NCS S 2060-R Deep Red

Color Harmonies

Complementary

#B54037

#37ACB5

Analogous

#B5376D

#B57F37

#B54037

Triadic

#B54037

#37B540

#4037B5

Split Complementary

#B54037

#37B57F

#376DB5

Tetradic

#B54037

#6DB537

#37ACB5

#7F37B5

Color Blindness Simulation

Original

#B54037

Protanopia

#828139

Deuteranopia

#89923A

Tritanopia

#AF3B3B

Achromatopsia

#585858

CSS Usage

background-color: #B54037;
color: #B54037;
border-color: #B54037;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FBF4F4
100
#F5E6E5
200
#EECBC8
300
#E2A6A1
400
#D3756E
500
#C4453B
600
#9C3730
700
#7D2C26
800
#62231E
900
#481D19
950
#2D1210

Contrast Checker

Text on white

5.6:1

AA Pass AAA Fail

Text on black

3.75:1

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