#5B5F89

#5B5F89

Color Values

HEX

#5B5F89

RGB

91, 95, 137

HSL

234.8, 20.2%, 44.7%

HSV

234.8, 33.6%, 53.7%

CMYK

33.6%, 30.7%, 0.0%, 46.3%

OKLCH

0.4995 0.067 279.5

Properties

Cool Dark Nearest: RAL 5007 Brilliant Blue

Color Harmonies

Complementary

#5B5F89

#89855B

Analogous

#5B7689

#6E5B89

#5B5F89

Triadic

#5B5F89

#895B5F

#5F895B

Split Complementary

#5B5F89

#896E5B

#76895B

Tetradic

#5B5F89

#895B76

#89855B

#5B896E

Color Blindness Simulation

Original

#5B5F89

Protanopia

#5D5D7F

Deuteranopia

#5C5C7C

Tritanopia

#5B7775

Achromatopsia

#616161

CSS Usage

background-color: #5B5F89;
color: #5B5F89;
border-color: #5B5F89;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F6F9
100
#EAEBF0
200
#D4D5E3
300
#B5B8CE
400
#8E91B4
500
#666A99
600
#51557B
700
#414462
800
#33354D
900
#282939
950
#191A24

Contrast Checker

Text on white

6.1:1

AA Pass AAA Fail

Text on black

3.44:1

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