#577387

#577387

Color Values

HEX

#577387

RGB

87, 115, 135

HSL

205.0, 21.6%, 43.5%

HSV

205.0, 35.6%, 52.9%

CMYK

35.6%, 14.8%, 0.0%, 47.1%

OKLCH

0.5413 0.0452 239.7

Properties

Cool Dark Nearest: lightskyblue 4

Color Harmonies

Complementary

#577387

#876B57

Analogous

#578783

#575B87

#577387

Triadic

#577387

#875773

#738757

Split Complementary

#577387

#87575B

#878357

Tetradic

#577387

#835787

#876B57

#5B8757

Color Blindness Simulation

Original

#577387

Protanopia

#636382

Deuteranopia

#625F81

Tritanopia

#587E7E

Achromatopsia

#6E6E6E

CSS Usage

background-color: #577387;
color: #577387;
border-color: #577387;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#EAEEF0
200
#D4DDE3
300
#B5C4CF
400
#8CA4B5
500
#64849B
600
#506A7C
700
#405563
800
#32424E
900
#27323A
950
#192025

Contrast Checker

Text on white

4.99:1

AA Pass AAA Fail

Text on black

4.21:1

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