#516C81

#516C81

Color Values

HEX

#516C81

RGB

81, 108, 129

HSL

206.2, 22.9%, 41.2%

HSV

206.2, 37.2%, 50.6%

CMYK

37.2%, 16.3%, 0.0%, 49.4%

OKLCH

0.5182 0.0461 242.1

Properties

Cool Dark Nearest: skyblue 4

Color Harmonies

Complementary

#516C81

#816651

Analogous

#51817E

#515481

#516C81

Triadic

#516C81

#81516C

#6C8151

Split Complementary

#516C81

#815154

#817E51

Tetradic

#516C81

#7E5181

#816651

#548151

Color Blindness Simulation

Original

#516C81

Protanopia

#5D5D7C

Deuteranopia

#5B597B

Tritanopia

#527877

Achromatopsia

#686868

CSS Usage

background-color: #516C81;
color: #516C81;
border-color: #516C81;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#EAEEF1
200
#D3DCE3
300
#B4C4D0
400
#8BA3B6
500
#62839D
600
#4F697D
700
#3F5464
800
#31424E
900
#26323A
950
#181F25

Contrast Checker

Text on white

5.51:1

AA Pass AAA Fail

Text on black

3.81:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026