#665FE1

#665FE1

Color Values

HEX

#665FE1

RGB

102, 95, 225

HSL

243.2, 68.4%, 62.7%

HSV

243.2, 57.8%, 88.2%

CMYK

54.7%, 57.8%, 0.0%, 11.8%

OKLCH

0.5635 0.1915 280.7

Properties

Cool Dark Nearest: slateblue 2

Color Harmonies

Complementary

#665FE1

#DAE15F

Analogous

#5F99E1

#A75FE1

#665FE1

Triadic

#665FE1

#E1665F

#5FE166

Split Complementary

#665FE1

#E1A75F

#99E15F

Tetradic

#665FE1

#E15F99

#DAE15F

#5FE1A7

Color Blindness Simulation

Original

#665FE1

Protanopia

#6363C2

Deuteranopia

#6364BA

Tritanopia

#66A9A3

Achromatopsia

#6A6A6A

CSS Usage

background-color: #665FE1;
color: #665FE1;
border-color: #665FE1;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F3F3FC
100
#E4E3F8
200
#C5C3F4
300
#9C98EC
400
#6760E1
500
#3228D7
600
#2820AC
700
#201A89
800
#19146B
900
#16134E
950
#0E0C31

Contrast Checker

Text on white

4.9:1

AA Pass AAA Fail

Text on black

4.29:1

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