#37307C

#37307C

Color Values

HEX

#37307C

RGB

55, 48, 124

HSL

245.5, 44.2%, 33.7%

HSV

245.5, 61.3%, 48.6%

CMYK

55.6%, 61.3%, 0.0%, 51.4%

OKLCH

0.3631 0.1244 282.4

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#37307C

#757C30

Analogous

#304F7C

#5D307C

#37307C

Triadic

#37307C

#7C3730

#307C37

Split Complementary

#37307C

#7C5D30

#4F7C30

Tetradic

#37307C

#7C304F

#757C30

#307C5D

Color Blindness Simulation

Original

#37307C

Protanopia

#34346A

Deuteranopia

#343565

Tritanopia

#375B58

Achromatopsia

#373737

CSS Usage

background-color: #37307C;
color: #37307C;
border-color: #37307C;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F4FA
100
#E8E6F4
200
#CECCEB
300
#ACA7DD
400
#7F77CA
500
#5147B8
600
#413993
700
#342E76
800
#29245C
900
#211D44
950
#15122B

Contrast Checker

Text on white

11.19:1

AA Pass AAA Pass

Text on black

1.88:1

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