#373653

#373653

Color Values

HEX

#373653

RGB

55, 54, 83

HSL

242.1, 21.2%, 26.9%

HSV

242.1, 34.9%, 32.5%

CMYK

33.7%, 34.9%, 0.0%, 67.5%

OKLCH

0.3472 0.0502 285.0

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#373653

#525336

Analogous

#364453

#463653

#373653

Triadic

#373653

#533736

#365337

Split Complementary

#373653

#534636

#445336

Tetradic

#373653

#533644

#525336

#365346

Color Blindness Simulation

Original

#373653

Protanopia

#37374C

Deuteranopia

#37374A

Tritanopia

#374645

Achromatopsia

#383838

CSS Usage

background-color: #373653;
color: #373653;
border-color: #373653;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EAEAF0
200
#D4D4E3
300
#B6B5CF
400
#8E8DB5
500
#66649B
600
#52507C
700
#424063
800
#33324D
900
#28273A
950
#191924

Contrast Checker

Text on white

11.57:1

AA Pass AAA Pass

Text on black

1.82:1

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