#5151CE

#5151CE

Color Values

HEX

#5151CE

RGB

81, 81, 206

HSL

240.0, 56.1%, 56.3%

HSV

240.0, 60.7%, 80.8%

CMYK

60.7%, 60.7%, 0.0%, 19.2%

OKLCH

0.5096 0.1882 277.4

Properties

Cool Dark Nearest: slateblue 3

Color Harmonies

Complementary

#5151CE

#CECE51

Analogous

#5190CE

#9051CE

#5151CE

Triadic

#5151CE

#CE5151

#51CE51

Split Complementary

#5151CE

#CE9051

#90CE51

Tetradic

#5151CE

#CE5190

#CECE51

#51CE90

Color Blindness Simulation

Original

#5151CE

Protanopia

#5151B0

Deuteranopia

#5151A8

Tritanopia

#519893

Achromatopsia

#5A5A5A

CSS Usage

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

Tailwind Shades

50
#F4F4FB
100
#E5E5F6
200
#C7C7EF
300
#9F9FE4
400
#6C6CD6
500
#3838C7
600
#2D2D9F
700
#24247F
800
#1C1C64
900
#181849
950
#0F0F2E

Contrast Checker

Text on white

6.14:1

AA Pass AAA Fail

Text on black

3.42:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026