#331B42

#331B42

Color Values

HEX

#331B42

RGB

51, 27, 66

HSL

276,9, 41,9%, 18,2%

HSV

276,9, 59,1%, 25,9%

CMYK

22,7%, 59,1%, 0,0%, 74,1%

OKLCH

0,2745 0,0745 310,8

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#331B42

#2A421B

Analogous

#1F1B42

#421B3D

#331B42

Triadic

#331B42

#42331B

#1B4233

Split Complementary

#331B42

#3D421B

#1B421F

Tetradic

#331B42

#421F1B

#2A421B

#1B3D42

Color Blindness Simulation

Original

#331B42

Protanopia

#292839

Deuteranopia

#2A2C36

Tritanopia

#32312F

Achromatopsia

#232323

CSS Usage

background-color: #331B42;
color: #331B42;
border-color: #331B42;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F5FA
100
#EFE7F4
200
#DFCCEA
300
#C8A8DB
400
#AA79C8
500
#8C4AB5
600
#703B91
700
#592F74
800
#46255A
900
#351E43
950
#21132A

Contrast Checker

Text on white

15,26:1

AA Pass AAA Pass

Text on black

1,38:1

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