#6663DA

#6663DA

Color Values

HEX

#6663DA

RGB

102, 99, 218

HSL

241.5, 61.7%, 62.2%

HSV

241.5, 54.6%, 85.5%

CMYK

53.2%, 54.6%, 0.0%, 14.5%

OKLCH

0.5655 0.177 280.2

Properties

Cool Dark Nearest: slateblue

Color Harmonies

Complementary

#6663DA

#D7DA63

Analogous

#639CDA

#A263DA

#6663DA

Triadic

#6663DA

#DA6663

#63DA66

Split Complementary

#6663DA

#DAA263

#9CDA63

Tetradic

#6663DA

#DA639C

#D7DA63

#63DAA2

Color Blindness Simulation

Original

#6663DA

Protanopia

#6565BD

Deuteranopia

#6565B6

Tritanopia

#66A6A1

Achromatopsia

#6C6C6C

CSS Usage

background-color: #6663DA;
color: #6663DA;
border-color: #6663DA;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F4F3FB
100
#E4E4F7
200
#C6C5F1
300
#9E9CE8
400
#6966DB
500
#3531CE
600
#2A27A5
700
#221F84
800
#1A1867
900
#17164B
950
#0E0E30

Contrast Checker

Text on white

4.81:1

AA Pass AAA Fail

Text on black

4.36:1

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