#373786

#373786

Color Values

HEX

#373786

RGB

55, 55, 134

HSL

240.0, 41.8%, 37.1%

HSV

240.0, 59.0%, 52.5%

CMYK

59.0%, 59.0%, 0.0%, 47.5%

OKLCH

0.3847 0.1289 278.5

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#373786

#868637

Analogous

#375F86

#5F3786

#373786

Triadic

#373786

#863737

#378637

Split Complementary

#373786

#865F37

#5F8637

Tetradic

#373786

#86375F

#868637

#37865F

Color Blindness Simulation

Original

#373786

Protanopia

#373773

Deuteranopia

#37376E

Tritanopia

#376460

Achromatopsia

#3D3D3D

CSS Usage

background-color: #373786;
color: #373786;
border-color: #373786;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E7E7F3
200
#CCCCEA
300
#A8A8DB
400
#7979C8
500
#4A4AB5
600
#3B3B91
700
#2F2F74
800
#25255A
900
#1E1E43
950
#13132A

Contrast Checker

Text on white

10.23:1

AA Pass AAA Pass

Text on black

2.05:1

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