#577F9B

#577F9B

Color Values

HEX

#577F9B

RGB

87, 127, 155

HSL

204.7, 28.1%, 47.5%

HSV

204.7, 43.9%, 60.8%

CMYK

43.9%, 18.1%, 0.0%, 39.2%

OKLCH

0.5779 0.0621 239.7

Properties

Cool Light Nearest: skyblue 4

Color Harmonies

Complementary

#577F9B

#9B7357

Analogous

#579B95

#575D9B

#577F9B

Triadic

#577F9B

#9B577F

#7F9B57

Split Complementary

#577F9B

#9B575D

#9B9557

Tetradic

#577F9B

#95579B

#9B7357

#5D9B57

Color Blindness Simulation

Original

#577F9B

Protanopia

#686994

Deuteranopia

#666393

Tritanopia

#598F8E

Achromatopsia

#797979

CSS Usage

background-color: #577F9B;
color: #577F9B;
border-color: #577F9B;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#E9EEF1
200
#D1DDE5
300
#B1C5D3
400
#86A5BB
500
#5C86A3
600
#496B83
700
#3B5669
800
#2E4352
900
#24333D
950
#172026

Contrast Checker

Text on white

4.27:1

AA Fail AAA Fail

Text on black

4.91:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

2월 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

2월 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

2월 19, 2026