#5151CD

#5151CD

Color Values

HEX

#5151CD

RGB

81, 81, 205

HSL

240.0, 55.4%, 56.1%

HSV

240.0, 60.5%, 80.4%

CMYK

60.5%, 60.5%, 0.0%, 19.6%

OKLCH

0.5087 0.1869 277.4

Properties

Cool Dark Nearest: slateblue 3

Color Harmonies

Complementary

#5151CD

#CDCD51

Analogous

#518FCD

#8F51CD

#5151CD

Triadic

#5151CD

#CD5151

#51CD51

Split Complementary

#5151CD

#CD8F51

#8FCD51

Tetradic

#5151CD

#CD518F

#CDCD51

#51CD8F

Color Blindness Simulation

Original

#5151CD

Protanopia

#5151AF

Deuteranopia

#5151A8

Tritanopia

#519792

Achromatopsia

#5A5A5A

CSS Usage

background-color: #5151CD;
color: #5151CD;
border-color: #5151CD;
Nearest Tailwind: Blue 700 #1D4ED8

Tailwind Shades

50
#F4F4FB
100
#E5E5F6
200
#C8C8EF
300
#A0A0E4
400
#6C6CD5
500
#3939C6
600
#2D2D9F
700
#24247F
800
#1C1C63
900
#181849
950
#0F0F2E

Contrast Checker

Text on white

6.16:1

AA Pass AAA Fail

Text on black

3.41:1

AA Fail AAA Fail

Part of These Collections

Radix UI Colors

Iris 10

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