#331D40

#331D40

Color Values

HEX

#331D40

RGB

51, 29, 64

HSL

277,7, 37,6%, 18,2%

HSV

277,7, 54,7%, 25,1%

CMYK

20,3%, 54,7%, 0,0%, 74,9%

OKLCH

0,2769 0,0677 311,7

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#331D40

#2A401D

Analogous

#211D40

#401D3B

#331D40

Triadic

#331D40

#40331D

#1D4033

Split Complementary

#331D40

#3B401D

#1D4021

Tetradic

#331D40

#40211D

#2A401D

#1D3B40

Color Blindness Simulation

Original

#331D40

Protanopia

#292938

Deuteranopia

#2B2C36

Tritanopia

#32312F

Achromatopsia

#242424

CSS Usage

background-color: #331D40;
color: #331D40;
border-color: #331D40;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F5FA
100
#EFE7F3
200
#DFCEE9
300
#C8ABD9
400
#AA7DC4
500
#8C50AF
600
#70408C
700
#593370
800
#462858
900
#352041
950
#211429

Contrast Checker

Text on white

15,1:1

AA Pass AAA Pass

Text on black

1,39:1

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