#B5312D

#B5312D

Color Values

HEX

#B5312D

RGB

181, 49, 45

HSL

1.8, 60.2%, 44.3%

HSV

1.8, 75.1%, 71.0%

CMYK

0.0%, 72.9%, 75.1%, 29.0%

OKLCH

0.5163 0.1695 26.8

Properties

Warm Dark Nearest: RAL 3031 Orient Red

Color Harmonies

Complementary

#B5312D

#2DB1B5

Analogous

#B52D6D

#B5752D

#B5312D

Triadic

#B5312D

#2DB531

#312DB5

Split Complementary

#B5312D

#2DB575

#2D6DB5

Tetradic

#B5312D

#6DB52D

#2DB1B5

#752DB5

Color Blindness Simulation

Original

#B5312D

Protanopia

#7C7B2E

Deuteranopia

#848D2E

Tritanopia

#AE2F2F

Achromatopsia

#4D4D4D

CSS Usage

background-color: #B5312D;
color: #B5312D;
border-color: #B5312D;
Nearest Tailwind: Red 800 #991B1B

Tailwind Shades

50
#FBF4F3
100
#F6E5E4
200
#F1C7C6
300
#E79F9D
400
#D96B68
500
#CC3733
600
#A32C29
700
#832320
800
#661C19
900
#4B1816
950
#2F0F0E

Contrast Checker

Text on white

6.1:1

AA Pass AAA Fail

Text on black

3.44:1

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