#373555

#373555

Color Values

HEX

#373555

RGB

55, 53, 85

HSL

243.8, 23.2%, 27.1%

HSV

243.8, 37.6%, 33.3%

CMYK

35.3%, 37.6%, 0.0%, 66.7%

OKLCH

0.3461 0.0553 286.0

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#373555

#535535

Analogous

#354355

#473555

#373555

Triadic

#373555

#553735

#355537

Split Complementary

#373555

#554735

#435535

Tetradic

#373555

#553543

#535535

#355547

Color Blindness Simulation

Original

#373555

Protanopia

#36364D

Deuteranopia

#36364B

Tritanopia

#374746

Achromatopsia

#383838

CSS Usage

background-color: #373555;
color: #373555;
border-color: #373555;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EAEAF1
200
#D4D3E4
300
#B5B4D0
400
#8E8BB7
500
#66629D
600
#514E7E
700
#413F65
800
#33314F
900
#28263B
950
#191825

Contrast Checker

Text on white

11.65:1

AA Pass AAA Pass

Text on black

1.8:1

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