#566B9B

#566B9B

Color Values

HEX

#566B9B

RGB

86, 107, 155

HSL

221.7, 28.6%, 47.3%

HSV

221.7, 44.5%, 60.8%

CMYK

44.5%, 31.0%, 0.0%, 39.2%

OKLCH

0.5314 0.0801 265.7

Properties

Cool Dark Nearest: RAL 5007 Brilliant Blue

Color Harmonies

Complementary

#566B9B

#9B8656

Analogous

#568E9B

#64569B

#566B9B

Triadic

#566B9B

#9B566B

#6B9B56

Split Complementary

#566B9B

#9B6456

#8E9B56

Tetradic

#566B9B

#9B568E

#9B8656

#569B64

Color Blindness Simulation

Original

#566B9B

Protanopia

#5F5F8F

Deuteranopia

#5E5C8D

Tritanopia

#578684

Achromatopsia

#6A6A6A

CSS Usage

background-color: #566B9B;
color: #566B9B;
border-color: #566B9B;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F7F9
100
#E9EBF1
200
#D1D7E6
300
#B0BBD3
400
#8696BC
500
#5B71A4
600
#495B83
700
#3A4869
800
#2E3952
900
#242C3D
950
#171C26

Contrast Checker

Text on white

5.29:1

AA Pass AAA Fail

Text on black

3.97:1

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