#516F99

#516F99

Color Values

HEX

#516F99

RGB

81, 111, 153

HSL

215.0, 30.8%, 45.9%

HSV

215.0, 47.1%, 60.0%

CMYK

47.1%, 27.5%, 0.0%, 40.0%

OKLCH

0.5362 0.0751 256.9

Properties

Cool Dark Nearest: RAL 5023 Distant Blue

Color Harmonies

Complementary

#516F99

#997B51

Analogous

#519399

#575199

#516F99

Triadic

#516F99

#99516F

#6F9951

Split Complementary

#516F99

#995751

#939951

Tetradic

#516F99

#995193

#997B51

#519957

Color Blindness Simulation

Original

#516F99

Protanopia

#5E5E8F

Deuteranopia

#5C5A8C

Tritanopia

#528785

Achromatopsia

#6C6C6C

CSS Usage

background-color: #516F99;
color: #516F99;
border-color: #516F99;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F7F9
100
#E8ECF2
200
#D0D9E6
300
#AFBFD5
400
#849CBE
500
#5879A7
600
#476185
700
#384D6B
800
#2C3C53
900
#232E3E
950
#161D27

Contrast Checker

Text on white

5.14:1

AA Pass AAA Fail

Text on black

4.08:1

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