#666ADF

#666ADF

Color Values

HEX

#666ADF

RGB

102, 106, 223

HSL

238.0, 65.4%, 63.7%

HSV

238.0, 54.3%, 87.5%

CMYK

54.3%, 52.5%, 0.0%, 12.5%

OKLCH

0.5817 0.1745 278.0

Properties

Cool Light Nearest: royalblue

Color Harmonies

Complementary

#666ADF

#DFDB66

Analogous

#66A6DF

#9E66DF

#666ADF

Triadic

#666ADF

#DF666A

#6ADF66

Split Complementary

#666ADF

#DF9E66

#A6DF66

Tetradic

#666ADF

#DF66A6

#DFDB66

#66DF9E

Color Blindness Simulation

Original

#666ADF

Protanopia

#6868C3

Deuteranopia

#6867BC

Tritanopia

#66ACA7

Achromatopsia

#727272

CSS Usage

background-color: #666ADF;
color: #666ADF;
border-color: #666ADF;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F3F3FC
100
#E3E4F7
200
#C4C6F3
300
#9A9CEA
400
#6367DE
500
#2C32D3
600
#2328A9
700
#1C2087
800
#161969
900
#14164D
950
#0D0E31

Contrast Checker

Text on white

4.48:1

AA Fail AAA Fail

Text on black

4.69:1

AA Pass 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