#37515C

#37515C

Color Values

HEX

#37515C

RGB

55, 81, 92

HSL

197.8, 25.2%, 28.8%

HSV

197.8, 40.2%, 36.1%

CMYK

40.2%, 12.0%, 0.0%, 63.9%

OKLCH

0.4185 0.0364 226.2

Properties

Cool Dark Nearest: darkslategrey

Color Harmonies

Complementary

#37515C

#5C4237

Analogous

#375C54

#373E5C

#37515C

Triadic

#37515C

#5C3751

#515C37

Split Complementary

#37515C

#5C373E

#5C5437

Tetradic

#37515C

#54375C

#5C4237

#3E5C37

Color Blindness Simulation

Original

#37515C

Protanopia

#424259

Deuteranopia

#413F59

Tritanopia

#385757

Achromatopsia

#4C4C4C

CSS Usage

background-color: #37515C;
color: #37515C;
border-color: #37515C;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F8F9
100
#E9EFF1
200
#D2DFE4
300
#B2C8D1
400
#89AAB8
500
#5F8DA0
600
#4C7080
700
#3D5A66
800
#304650
900
#25353B
950
#182126

Contrast Checker

Text on white

8.42:1

AA Pass AAA Pass

Text on black

2.49:1

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