#51798C

#51798C

Color Values

HEX

#51798C

RGB

81, 121, 140

HSL

199.3, 26.7%, 43.3%

HSV

199.3, 42.1%, 54.9%

CMYK

42.1%, 13.6%, 0.0%, 45.1%

OKLCH

0.5539 0.0535 229.3

Properties

Cool Dark Nearest: lightskyblue 4

Color Harmonies

Complementary

#51798C

#8C6451

Analogous

#518C81

#515B8C

#51798C

Triadic

#51798C

#8C5179

#798C51

Split Complementary

#51798C

#8C515B

#8C8151

Tetradic

#51798C

#81518C

#8C6451

#5B8C51

Color Blindness Simulation

Original

#51798C

Protanopia

#626387

Deuteranopia

#605D86

Tritanopia

#538483

Achromatopsia

#727272

CSS Usage

background-color: #51798C;
color: #51798C;
border-color: #51798C;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#E9EFF1
200
#D2DFE5
300
#B1C8D2
400
#87AABA
500
#5D8CA2
600
#4B7081
700
#3C5967
800
#2F4651
900
#25353C
950
#172126

Contrast Checker

Text on white

4.7:1

AA Pass AAA Fail

Text on black

4.46:1

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