#37404B

#37404B

Color Values

HEX

#37404B

RGB

55, 64, 75

HSL

213.0, 15.4%, 25.5%

HSV

213.0, 26.7%, 29.4%

CMYK

26.7%, 14.7%, 0.0%, 70.6%

OKLCH

0.3677 0.0225 253.6

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#37404B

#4B4237

Analogous

#374A4B

#38374B

#37404B

Triadic

#37404B

#4B3740

#404B37

Split Complementary

#37404B

#4B3837

#4A4B37

Tetradic

#37404B

#4B374A

#4B4237

#374B38

Color Blindness Simulation

Original

#37404B

Protanopia

#3B3B48

Deuteranopia

#3A3A48

Tritanopia

#374646

Achromatopsia

#3F3F3F

CSS Usage

background-color: #37404B;
color: #37404B;
border-color: #37404B;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F8
100
#EBEDEF
200
#D6DBE1
300
#B8C1CB
400
#929FAF
500
#6C7E93
600
#566476
700
#45505E
800
#363F4A
900
#2A3037
950
#1A1E23

Contrast Checker

Text on white

10.51:1

AA Pass AAA Pass

Text on black

2.0:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026