#577DA5

#577DA5

Color Values

HEX

#577DA5

RGB

87, 125, 165

HSL

210.8, 31.0%, 49.4%

HSV

210.8, 47.3%, 64.7%

CMYK

47.3%, 24.2%, 0.0%, 35.3%

OKLCH

0.5778 0.0754 250.5

Properties

Cool Light Nearest: steelblue

Color Harmonies

Complementary

#577DA5

#A57F57

Analogous

#57A4A5

#5857A5

#577DA5

Triadic

#577DA5

#A5577D

#7DA557

Split Complementary

#577DA5

#A55857

#A4A557

Tetradic

#577DA5

#A557A4

#A57F57

#57A558

Color Blindness Simulation

Original

#577DA5

Protanopia

#67689B

Deuteranopia

#656299

Tritanopia

#599492

Achromatopsia

#787878

CSS Usage

background-color: #577DA5;
color: #577DA5;
border-color: #577DA5;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F7F9
100
#E8EDF2
200
#D0DBE6
300
#AFC1D5
400
#83A0BE
500
#587EA7
600
#466586
700
#38516B
800
#2C3F54
900
#23303E
950
#161E27

Contrast Checker

Text on white

4.3:1

AA Fail AAA Fail

Text on black

4.88:1

AA Pass 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