#5181B3

#5181B3

Color Values

HEX

#5181B3

RGB

81, 129, 179

HSL

210.6, 39.2%, 51.0%

HSV

210.6, 54.7%, 70.2%

CMYK

54.7%, 27.9%, 0.0%, 29.8%

OKLCH

0.5904 0.0932 250.6

Properties

Cool Light Nearest: steelblue

Color Harmonies

Complementary

#5181B3

#B38351

Analogous

#51B2B3

#5251B3

#5181B3

Triadic

#5181B3

#B35181

#81B351

Split Complementary

#5181B3

#B35251

#B2B351

Tetradic

#5181B3

#B351B2

#B38351

#51B352

Color Blindness Simulation

Original

#5181B3

Protanopia

#6666A7

Deuteranopia

#635FA4

Tritanopia

#539D9B

Achromatopsia

#7A7A7A

CSS Usage

background-color: #5181B3;
color: #5181B3;
border-color: #5181B3;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F7FA
100
#E7EDF3
200
#CDDBE9
300
#AAC1DA
400
#7CA0C6
500
#4E7FB1
600
#3E658E
700
#325172
800
#273F59
900
#1F3042
950
#141E29

Contrast Checker

Text on white

4.08:1

AA Fail AAA Fail

Text on black

5.14:1

AA Pass 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