#57658B

#57658B

Color Values

HEX

#57658B

RGB

87, 101, 139

HSL

223.8, 23.0%, 44.3%

HSV

223.8, 37.4%, 54.5%

CMYK

37.4%, 27.3%, 0.0%, 45.5%

OKLCH

0.5107 0.063 268.5

Properties

Cool Dark Nearest: RAL 5023 Distant Blue

Color Harmonies

Complementary

#57658B

#8B7D57

Analogous

#577F8B

#63578B

#57658B

Triadic

#57658B

#8B5765

#658B57

Split Complementary

#57658B

#8B6357

#7F8B57

Tetradic

#57658B

#8B577F

#8B7D57

#578B63

Color Blindness Simulation

Original

#57658B

Protanopia

#5D5D82

Deuteranopia

#5C5B80

Tritanopia

#587B79

Achromatopsia

#656565

CSS Usage

background-color: #57658B;
color: #57658B;
border-color: #57658B;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F7F9
100
#EAECF1
200
#D3D8E4
300
#B4BBD0
400
#8B97B6
500
#62729D
600
#4F5B7D
700
#3F4964
800
#31394E
900
#262C3A
950
#181C25

Contrast Checker

Text on white

5.77:1

AA Pass AAA Fail

Text on black

3.64:1

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