#331B37

#331B37

Color Values

HEX

#331B37

RGB

51, 27, 55

HSL

291.4, 34.1%, 16.1%

HSV

291.4, 50.9%, 21.6%

CMYK

7.3%, 50.9%, 0.0%, 78.4%

OKLCH

0.2674 0.0597 321.7

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#331B37

#1F371B

Analogous

#251B37

#371B2D

#331B37

Triadic

#331B37

#37331B

#1B3733

Split Complementary

#331B37

#2D371B

#1B3725

Tetradic

#331B37

#37251B

#1F371B

#1B2D37

Color Blindness Simulation

Original

#331B37

Protanopia

#292830

Deuteranopia

#2A2C2F

Tritanopia

#322B2A

Achromatopsia

#222222

CSS Usage

background-color: #331B37;
color: #331B37;
border-color: #331B37;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F9F5FA
100
#F1E8F2
200
#E4CFE7
300
#D1ADD7
400
#B880C1
500
#9F54AB
600
#7F4389
700
#65366D
800
#4F2A55
900
#3B223F
950
#251528

Contrast Checker

Text on white

15.52:1

AA Pass AAA Pass

Text on black

1.35:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

1월 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

1월 21, 2026
Tutorials

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

1월 18, 2026