#51758C

#51758C

Color Values

HEX

#51758C

RGB

81, 117, 140

HSL

203.4, 26.7%, 43.3%

HSV

203.4, 42.1%, 54.9%

CMYK

42.1%, 16.4%, 0.0%, 45.1%

OKLCH

0.5443 0.0545 237.1

Properties

Cool Dark Nearest: skyblue 4

Color Harmonies

Complementary

#51758C

#8C6851

Analogous

#518C85

#51578C

#51758C

Triadic

#51758C

#8C5175

#758C51

Split Complementary

#51758C

#8C5157

#8C8551

Tetradic

#51758C

#85518C

#8C6851

#578C51

Color Blindness Simulation

Original

#51758C

Protanopia

#616186

Deuteranopia

#5E5C85

Tritanopia

#538281

Achromatopsia

#6F6F6F

CSS Usage

background-color: #51758C;
color: #51758C;
border-color: #51758C;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#E9EEF1
200
#D2DDE5
300
#B1C5D2
400
#87A6BA
500
#5D87A2
600
#4B6C81
700
#3C5667
800
#2F4351
900
#25333C
950
#172026

Contrast Checker

Text on white

4.91:1

AA Pass AAA Fail

Text on black

4.27:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026