#566F83

#566F83

Color Values

HEX

#566F83

RGB

86, 111, 131

HSL

206.7, 20.7%, 42.5%

HSV

206.7, 34.4%, 51.4%

CMYK

34.4%, 15.3%, 0.0%, 48.6%

OKLCH

0.5295 0.0432 242.8

Properties

Cool Dark Nearest: lightskyblue 4

Color Harmonies

Complementary

#566F83

#836A56

Analogous

#568380

#565883

#566F83

Triadic

#566F83

#83566F

#6F8356

Split Complementary

#566F83

#835658

#838056

Tetradic

#566F83

#805683

#836A56

#588356

Color Blindness Simulation

Original

#566F83

Protanopia

#61617E

Deuteranopia

#5F5E7D

Tritanopia

#577A7A

Achromatopsia

#6B6B6B

CSS Usage

background-color: #566F83;
color: #566F83;
border-color: #566F83;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F7F9
100
#EAEDF0
200
#D4DCE3
300
#B5C3CE
400
#8DA3B4
500
#65829A
600
#51687B
700
#415362
800
#33414D
900
#273139
950
#191F24

Contrast Checker

Text on white

5.25:1

AA Pass AAA Fail

Text on black

4.0:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026