#37378F

#37378F

Color Values

HEX

#37378F

RGB

55, 55, 143

HSL

240.0, 44.4%, 38.8%

HSV

240.0, 61.5%, 56.1%

CMYK

61.5%, 61.5%, 0.0%, 43.9%

OKLCH

0.3922 0.1418 277.6

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#37378F

#8F8F37

Analogous

#37638F

#63378F

#37378F

Triadic

#37378F

#8F3737

#378F37

Split Complementary

#37378F

#8F6337

#638F37

Tetradic

#37378F

#8F3763

#8F8F37

#378F63

Color Blindness Simulation

Original

#37378F

Protanopia

#37377A

Deuteranopia

#373775

Tritanopia

#376965

Achromatopsia

#3D3D3D

CSS Usage

background-color: #37378F;
color: #37378F;
border-color: #37378F;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CBCBEB
300
#A7A7DD
400
#7777CB
500
#4747B8
600
#393993
700
#2D2D76
800
#23235C
900
#1D1D44
950
#12122B

Contrast Checker

Text on white

9.97:1

AA Pass AAA Pass

Text on black

2.11:1

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