#566DA3

#566DA3

Color Values

HEX

#566DA3

RGB

86, 109, 163

HSL

222.1, 30.9%, 48.8%

HSV

222.1, 47.2%, 63.9%

CMYK

47.2%, 33.1%, 0.0%, 36.1%

OKLCH

0.5401 0.0894 265.9

Properties

Cool Dark Nearest: RAL 5007 Brilliant Blue

Color Harmonies

Complementary

#566DA3

#A38C56

Analogous

#5693A3

#6556A3

#566DA3

Triadic

#566DA3

#A3566D

#6DA356

Split Complementary

#566DA3

#A36556

#93A356

Tetradic

#566DA3

#A35693

#A38C56

#56A365

Color Blindness Simulation

Original

#566DA3

Protanopia

#606096

Deuteranopia

#5F5D93

Tritanopia

#578C89

Achromatopsia

#6C6C6C

CSS Usage

background-color: #566DA3;
color: #566DA3;
border-color: #566DA3;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F7F9
100
#E8EBF2
200
#D0D7E6
300
#AFBAD5
400
#8395BE
500
#5870A7
600
#465986
700
#38476B
800
#2C3853
900
#232B3E
950
#161B27

Contrast Checker

Text on white

5.11:1

AA Pass AAA Fail

Text on black

4.11:1

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