#5151B5

#5151B5

Color Values

HEX

#5151B5

RGB

81, 81, 181

HSL

240.0, 40.3%, 51.4%

HSV

240.0, 55.2%, 71.0%

CMYK

55.2%, 55.2%, 0.0%, 29.0%

OKLCH

0.4902 0.1545 279.1

Properties

Cool Dark Nearest: NCS S 1050-R90B Blue Violet

Color Harmonies

Complementary

#5151B5

#B5B551

Analogous

#5183B5

#8351B5

#5151B5

Triadic

#5151B5

#B55151

#51B551

Split Complementary

#5151B5

#B58351

#83B551

Tetradic

#5151B5

#B55183

#B5B551

#51B583

Color Blindness Simulation

Original

#5151B5

Protanopia

#51519D

Deuteranopia

#515197

Tritanopia

#518A86

Achromatopsia

#585858

CSS Usage

background-color: #5151B5;
color: #5151B5;
border-color: #5151B5;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F5F5FA
100
#E7E7F3
200
#CDCDEA
300
#A9A9DA
400
#7B7BC7
500
#4C4CB3
600
#3D3D8F
700
#313172
800
#262659
900
#1F1F42
950
#14142A

Contrast Checker

Text on white

6.57:1

AA Pass AAA Fail

Text on black

3.19:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026