#666DC8

#666DC8

Color Values

HEX

#666DC8

RGB

102, 109, 200

HSL

235.7, 47.1%, 59.2%

HSV

235.7, 49.0%, 78.4%

CMYK

49.0%, 45.5%, 0.0%, 21.6%

OKLCH

0.5724 0.1386 277.7

Properties

Cool Light Nearest: Blue Violet

Color Harmonies

Complementary

#666DC8

#C8C166

Analogous

#669EC8

#9066C8

#666DC8

Triadic

#666DC8

#C8666D

#6DC866

Split Complementary

#666DC8

#C89066

#9EC866

Tetradic

#666DC8

#C8669E

#C8C166

#66C890

Color Blindness Simulation

Original

#666DC8

Protanopia

#6969B2

Deuteranopia

#6968AD

Tritanopia

#66A19D

Achromatopsia

#727272

CSS Usage

background-color: #666DC8;
color: #666DC8;
border-color: #666DC8;
Nearest Tailwind: Indigo 400 #818CF8

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CACDEC
300
#A5A9DF
400
#747BCD
500
#434CBC
600
#363D96
700
#2B3178
800
#22265E
900
#1C1F45
950
#12132C

Contrast Checker

Text on white

4.58:1

AA Pass AAA Fail

Text on black

4.59:1

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