#373F4B

#373F4B

Color Values

HEX

#373F4B

RGB

55, 63, 75

HSL

216.0, 15.4%, 25.5%

HSV

216.0, 26.7%, 29.4%

CMYK

26.7%, 16.0%, 0.0%, 70.6%

OKLCH

0.3652 0.0234 258.4

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#373F4B

#4B4337

Analogous

#37494B

#39374B

#373F4B

Triadic

#373F4B

#4B373F

#3F4B37

Split Complementary

#373F4B

#4B3937

#494B37

Tetradic

#373F4B

#4B3749

#4B4337

#374B39

Color Blindness Simulation

Original

#373F4B

Protanopia

#3A3B48

Deuteranopia

#3A3947

Tritanopia

#374645

Achromatopsia

#3E3E3E

CSS Usage

background-color: #373F4B;
color: #373F4B;
border-color: #373F4B;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F8
100
#EBEDEF
200
#D6DAE1
300
#B8C0CB
400
#929EAF
500
#6C7C93
600
#566376
700
#454F5E
800
#363E4A
900
#2A2F37
950
#1A1E23

Contrast Checker

Text on white

10.63:1

AA Pass AAA Pass

Text on black

1.98:1

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