#373D83

#373D83

Color Values

HEX

#373D83

RGB

55, 61, 131

HSL

235.3, 40.9%, 36.5%

HSV

235.3, 58.0%, 51.4%

CMYK

58.0%, 53.4%, 0.0%, 48.6%

OKLCH

0.3944 0.116 276.0

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#373D83

#837D37

Analogous

#376383

#573783

#373D83

Triadic

#373D83

#83373D

#3D8337

Split Complementary

#373D83

#835737

#638337

Tetradic

#373D83

#833763

#837D37

#378357

Color Blindness Simulation

Original

#373D83

Protanopia

#3A3A72

Deuteranopia

#39396E

Tritanopia

#376562

Achromatopsia

#414141

CSS Usage

background-color: #373D83;
color: #373D83;
border-color: #373D83;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E8F3
200
#CDCFEA
300
#A9ADDB
400
#7A80C7
500
#4B54B4
600
#3C4390
700
#303573
800
#262A5A
900
#1F2142
950
#13152A

Contrast Checker

Text on white

9.73:1

AA Pass AAA Pass

Text on black

2.16:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026