#5151E7

#5151E7

Color Values

HEX

#5151E7

RGB

81, 81, 231

HSL

240.0, 75.8%, 61.2%

HSV

240.0, 64.9%, 90.6%

CMYK

64.9%, 64.9%, 0.0%, 9.4%

OKLCH

0.5304 0.2201 275.9

Properties

Cool Dark Nearest: slateblue 2

Color Harmonies

Complementary

#5151E7

#E7E751

Analogous

#519CE7

#9C51E7

#5151E7

Triadic

#5151E7

#E75151

#51E751

Split Complementary

#5151E7

#E79C51

#9CE751

Tetradic

#5151E7

#E7519C

#E7E751

#51E79C

Color Blindness Simulation

Original

#5151E7

Protanopia

#5151C3

Deuteranopia

#5151BA

Tritanopia

#51A6A0

Achromatopsia

#5C5C5C

CSS Usage

background-color: #5151E7;
color: #5151E7;
border-color: #5151E7;
Nearest Tailwind: Indigo 600 #4F46E5

Tailwind Shades

50
#F2F2FC
100
#E2E2F9
200
#C0C0F6
300
#9393F0
400
#5959E8
500
#1F1FE0
600
#1919B3
700
#14148F
800
#0F0F70
900
#0F0F52
950
#0A0A33

Contrast Checker

Text on white

5.71:1

AA Pass AAA Fail

Text on black

3.68:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026