#373F59

#373F59

Color Values

HEX

#373F59

RGB

55, 63, 89

HSL

225.9, 23.6%, 28.2%

HSV

225.9, 38.2%, 34.9%

CMYK

38.2%, 29.2%, 0.0%, 65.1%

OKLCH

0.372 0.0461 270.9

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#373F59

#595137

Analogous

#375059

#403759

#373F59

Triadic

#373F59

#59373F

#3F5937

Split Complementary

#373F59

#594037

#505937

Tetradic

#373F59

#593750

#595137

#375940

Color Blindness Simulation

Original

#373F59

Protanopia

#3A3B53

Deuteranopia

#3A3951

Tritanopia

#374E4D

Achromatopsia

#3F3F3F

CSS Usage

background-color: #373F59;
color: #373F59;
border-color: #373F59;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F7F9
100
#EAEBF1
200
#D3D7E4
300
#B3BAD0
400
#8A95B7
500
#61709E
600
#4E597E
700
#3E4765
800
#31384F
900
#262B3B
950
#181B25

Contrast Checker

Text on white

10.41:1

AA Pass AAA Pass

Text on black

2.02:1

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