#5151C8

#5151C8

Color Values

HEX

#5151C8

RGB

81, 81, 200

HSL

240.0, 52.0%, 55.1%

HSV

240.0, 59.5%, 78.4%

CMYK

59.5%, 59.5%, 0.0%, 21.6%

OKLCH

0.5048 0.1803 277.8

Properties

Cool Dark Nearest: slateblue 3

Color Harmonies

Complementary

#5151C8

#C8C851

Analogous

#518DC8

#8D51C8

#5151C8

Triadic

#5151C8

#C85151

#51C851

Split Complementary

#5151C8

#C88D51

#8DC851

Tetradic

#5151C8

#C8518D

#C8C851

#51C88D

Color Blindness Simulation

Original

#5151C8

Protanopia

#5151AB

Deuteranopia

#5151A4

Tritanopia

#51948F

Achromatopsia

#5A5A5A

CSS Usage

background-color: #5151C8;
color: #5151C8;
border-color: #5151C8;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F4F4FB
100
#E5E5F5
200
#C9C9EE
300
#A2A2E2
400
#7070D2
500
#3D3DC2
600
#31319B
700
#27277C
800
#1F1F61
900
#1A1A47
950
#10102D

Contrast Checker

Text on white

6.25:1

AA Pass AAA Fail

Text on black

3.36:1

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