#516D7B

#516D7B

Color Values

HEX

#516D7B

RGB

81, 109, 123

HSL

200.0, 20.6%, 40.0%

HSV

200.0, 34.1%, 48.2%

CMYK

34.1%, 11.4%, 0.0%, 51.8%

OKLCH

0.5181 0.0395 230.1

Properties

Cool Dark Nearest: lightskyblue 4

Color Harmonies

Complementary

#516D7B

#7B5F51

Analogous

#517B74

#51587B

#516D7B

Triadic

#516D7B

#7B516D

#6D7B51

Split Complementary

#516D7B

#7B5158

#7B7451

Tetradic

#516D7B

#74517B

#7B5F51

#587B51

Color Blindness Simulation

Original

#516D7B

Protanopia

#5D5D78

Deuteranopia

#5C5977

Tritanopia

#527574

Achromatopsia

#686868

CSS Usage

background-color: #516D7B;
color: #516D7B;
border-color: #516D7B;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#EAEEF0
200
#D4DEE3
300
#B5C6CE
400
#8DA7B4
500
#65889A
600
#516D7B
700
#415762
800
#33444D
900
#273339
950
#192024

Contrast Checker

Text on white

5.49:1

AA Pass AAA Fail

Text on black

3.82:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026