#51759F

#51759F

Color Values

HEX

#51759F

RGB

81, 117, 159

HSL

212.3, 32.5%, 47.1%

HSV

212.3, 49.1%, 62.4%

CMYK

49.1%, 26.4%, 0.0%, 37.6%

OKLCH

0.553 0.0777 252.9

Properties

Cool Dark Nearest: RAL 5023 Distant Blue

Color Harmonies

Complementary

#51759F

#9F7B51

Analogous

#519C9F

#54519F

#51759F

Triadic

#51759F

#9F5175

#759F51

Split Complementary

#51759F

#9F5451

#9C9F51

Tetradic

#51759F

#9F519C

#9F7B51

#519F54

Color Blindness Simulation

Original

#51759F

Protanopia

#616195

Deuteranopia

#5E5C92

Tritanopia

#538D8B

Achromatopsia

#707070

CSS Usage

background-color: #51759F;
color: #51759F;
border-color: #51759F;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F7F9
100
#E8EDF2
200
#D0DAE7
300
#AEC0D6
400
#829EBF
500
#567CA9
600
#456387
700
#37506C
800
#2B3E54
900
#222F3F
950
#161E28

Contrast Checker

Text on white

4.78:1

AA Pass AAA Fail

Text on black

4.4:1

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