#371F4B

#371F4B

Color Values

HEX

#371F4B

RGB

55, 31, 75

HSL

272.7, 41.5%, 20.8%

HSV

272.7, 58.7%, 29.4%

CMYK

26.7%, 58.7%, 0.0%, 70.6%

OKLCH

0.2934 0.081 307.3

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#371F4B

#334B1F

Analogous

#211F4B

#4B1F49

#371F4B

Triadic

#371F4B

#4B371F

#1F4B37

Split Complementary

#371F4B

#494B1F

#1F4B21

Tetradic

#371F4B

#4B211F

#334B1F

#1F494B

Color Blindness Simulation

Original

#371F4B

Protanopia

#2D2C40

Deuteranopia

#2E303E

Tritanopia

#363836

Achromatopsia

#272727

CSS Usage

background-color: #371F4B;
color: #371F4B;
border-color: #371F4B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F5FA
100
#EEE7F3
200
#DDCCEA
300
#C4A8DB
400
#A479C8
500
#844BB4
600
#6A3C90
700
#553073
800
#42255A
900
#321E43
950
#20132A

Contrast Checker

Text on white

14.38:1

AA Pass AAA Pass

Text on black

1.46:1

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