#516F8C

#516F8C

Color Values

HEX

#516F8C

RGB

81, 111, 140

HSL

209.5, 26.7%, 43.3%

HSV

209.5, 42.1%, 54.9%

CMYK

42.1%, 20.7%, 0.0%, 45.1%

OKLCH

0.5301 0.0577 248.1

Properties

Cool Dark Nearest: skyblue 4

Color Harmonies

Complementary

#516F8C

#8C6E51

Analogous

#518C8B

#51518C

#516F8C

Triadic

#516F8C

#8C516F

#6F8C51

Split Complementary

#516F8C

#8C5151

#8C8B51

Tetradic

#516F8C

#8B518C

#8C6E51

#518C51

Color Blindness Simulation

Original

#516F8C

Protanopia

#5E5E85

Deuteranopia

#5C5A83

Tritanopia

#527F7E

Achromatopsia

#6B6B6B

CSS Usage

background-color: #516F8C;
color: #516F8C;
border-color: #516F8C;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F7F9
100
#E9EDF1
200
#D2DBE5
300
#B1C2D2
400
#87A1BA
500
#5D80A2
600
#4B6681
700
#3C5267
800
#2F4051
900
#25313C
950
#171F26

Contrast Checker

Text on white

5.25:1

AA Pass AAA Fail

Text on black

4.0:1

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