#66378D

#66378D

Color Values

HEX

#66378D

RGB

102, 55, 141

HSL

272.8, 43.9%, 38.4%

HSV

272.8, 61.0%, 55.3%

CMYK

27.7%, 61.0%, 0.0%, 44.7%

OKLCH

0.4375 0.1402 306.7

Properties

Cool Dark Nearest: mediumorchid 4

Color Harmonies

Complementary

#66378D

#5E8D37

Analogous

#3B378D

#8D3789

#66378D

Triadic

#66378D

#8D6637

#378D66

Split Complementary

#66378D

#898D37

#378D3B

Tetradic

#66378D

#8D3B37

#5E8D37

#37898D

Color Blindness Simulation

Original

#66378D

Protanopia

#525178

Deuteranopia

#545873

Tritanopia

#646864

Achromatopsia

#474747

CSS Usage

background-color: #66378D;
color: #66378D;
border-color: #66378D;
Nearest Tailwind: Fuchsia 900 #701A75

Tailwind Shades

50
#F8F4FA
100
#EEE6F4
200
#DDCCEB
300
#C4A7DD
400
#A577CA
500
#8548B7
600
#6A3993
700
#552E75
800
#42245C
900
#321D44
950
#20132B

Contrast Checker

Text on white

8.41:1

AA Pass AAA Pass

Text on black

2.5:1

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