#6660CC

#6660CC

Color Values

HEX

#6660CC

RGB

102, 96, 204

HSL

243.3, 51.4%, 58.8%

HSV

243.3, 52.9%, 80.0%

CMYK

50.0%, 52.9%, 0.0%, 20.0%

OKLCH

0.5503 0.1621 282.2

Properties

Cool Dark Nearest: slateblue

Color Harmonies

Complementary

#6660CC

#C6CC60

Analogous

#6090CC

#9C60CC

#6660CC

Triadic

#6660CC

#CC6660

#60CC66

Split Complementary

#6660CC

#CC9C60

#90CC60

Tetradic

#6660CC

#CC6090

#C6CC60

#60CC9C

Color Blindness Simulation

Original

#6660CC

Protanopia

#6363B2

Deuteranopia

#6464AC

Tritanopia

#669D99

Achromatopsia

#696969

CSS Usage

background-color: #6660CC;
color: #6660CC;
border-color: #6660CC;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F4F4FB
100
#E6E5F5
200
#CBC9EE
300
#A6A2E1
400
#7570D1
500
#453EC1
600
#37329A
700
#2C287C
800
#231F61
900
#1D1A47
950
#12102D

Contrast Checker

Text on white

5.11:1

AA Pass AAA Fail

Text on black

4.11:1

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