#516D87

#516D87

Color Values

HEX

#516D87

RGB

81, 109, 135

HSL

208.9, 25.0%, 42.4%

HSV

208.9, 40.0%, 52.9%

CMYK

40.0%, 19.3%, 0.0%, 47.1%

OKLCH

0.5231 0.0527 247.0

Properties

Cool Dark Nearest: skyblue 4

Color Harmonies

Complementary

#516D87

#876B51

Analogous

#518786

#515287

#516D87

Triadic

#516D87

#87516D

#6D8751

Split Complementary

#516D87

#875152

#878651

Tetradic

#516D87

#865187

#876B51

#528751

Color Blindness Simulation

Original

#516D87

Protanopia

#5D5D81

Deuteranopia

#5C597F

Tritanopia

#527C7B

Achromatopsia

#696969

CSS Usage

background-color: #516D87;
color: #516D87;
border-color: #516D87;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F7F9
100
#E9EDF1
200
#D2DCE4
300
#B2C2D1
400
#89A2B8
500
#60819F
600
#4D6780
700
#3D5266
800
#304050
900
#26313B
950
#181F25

Contrast Checker

Text on white

5.4:1

AA Pass AAA Fail

Text on black

3.89:1

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