#373989

#373989

Color Values

HEX

#373989

RGB

55, 57, 137

HSL

238.5, 42.7%, 37.6%

HSV

238.5, 59.9%, 53.7%

CMYK

59.9%, 58.4%, 0.0%, 46.3%

OKLCH

0.391 0.1305 277.4

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#373989

#898737

Analogous

#376289

#5E3789

#373989

Triadic

#373989

#893739

#398937

Split Complementary

#373989

#895E37

#628937

Tetradic

#373989

#893762

#898737

#37895E

Color Blindness Simulation

Original

#373989

Protanopia

#383876

Deuteranopia

#383871

Tritanopia

#376663

Achromatopsia

#3E3E3E

CSS Usage

background-color: #373989;
color: #373989;
border-color: #373989;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E7F4
200
#CCCDEB
300
#A8A9DC
400
#787AC9
500
#494CB6
600
#3A3D92
700
#2F3074
800
#25265B
900
#1E1F43
950
#13132A

Contrast Checker

Text on white

9.96:1

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