#373F52

#373F52

Color Values

HEX

#373F52

RGB

55, 63, 82

HSL

222.2, 19.7%, 26.9%

HSV

222.2, 32.9%, 32.2%

CMYK

32.9%, 23.2%, 0.0%, 67.8%

OKLCH

0.3684 0.0346 266.9

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#373F52

#524A37

Analogous

#374D52

#3D3752

#373F52

Triadic

#373F52

#52373F

#3F5237

Split Complementary

#373F52

#523D37

#4D5237

Tetradic

#373F52

#52374D

#524A37

#37523D

Color Blindness Simulation

Original

#373F52

Protanopia

#3A3B4D

Deuteranopia

#3A394C

Tritanopia

#374A49

Achromatopsia

#3F3F3F

CSS Usage

background-color: #373F52;
color: #373F52;
border-color: #373F52;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F7F9
100
#EAECF0
200
#D4D8E2
300
#B6BDCE
400
#8E99B3
500
#667599
600
#525E7A
700
#424B62
800
#333B4C
900
#282D39
950
#191C24

Contrast Checker

Text on white

10.52:1

AA Pass AAA Pass

Text on black

2.0:1

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