#37398D

#37398D

Color Values

HEX

#37398D

RGB

55, 57, 141

HSL

238.6, 43.9%, 38.4%

HSV

238.6, 61.0%, 55.3%

CMYK

61.0%, 59.6%, 0.0%, 44.7%

OKLCH

0.3943 0.1363 277.1

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#37398D

#8D8B37

Analogous

#37648D

#60378D

#37398D

Triadic

#37398D

#8D3739

#398D37

Split Complementary

#37398D

#8D6037

#648D37

Tetradic

#37398D

#8D3764

#8D8B37

#378D60

Color Blindness Simulation

Original

#37398D

Protanopia

#383879

Deuteranopia

#383874

Tritanopia

#376965

Achromatopsia

#3F3F3F

CSS Usage

background-color: #37398D;
color: #37398D;
border-color: #37398D;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CCCCEB
300
#A7A8DD
400
#7779CA
500
#484AB7
600
#393B93
700
#2E2F75
800
#24255C
900
#1D1E44
950
#13132B

Contrast Checker

Text on white

9.85:1

AA Pass AAA Pass

Text on black

2.13:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026