#666379

#666379

Color Values

HEX

#666379

RGB

102, 99, 121

HSL

248.2, 10.0%, 43.1%

HSV

248.2, 18.2%, 47.5%

CMYK

15.7%, 18.2%, 0.0%, 52.5%

OKLCH

0.5105 0.0347 291.4

Properties

Cool Dark Nearest: RAL 4012 Pearl Blackberry

Color Harmonies

Complementary

#666379

#767963

Analogous

#636B79

#716379

#666379

Triadic

#666379

#796663

#637966

Split Complementary

#666379

#797163

#6B7963

Tetradic

#666379

#79636B

#767963

#637971

Color Blindness Simulation

Original

#666379

Protanopia

#656574

Deuteranopia

#656572

Tritanopia

#666F6F

Achromatopsia

#656565

CSS Usage

background-color: #666379;
color: #666379;
border-color: #666379;
Nearest Tailwind: Gray 500 #6B7280

Tailwind Shades

50
#F7F7F8
100
#ECECEF
200
#D9D8DF
300
#BDBCC8
400
#9A97AA
500
#76738C
600
#5F5C70
700
#4C495A
800
#3B3946
900
#2D2C35
950
#1D1C21

Contrast Checker

Text on white

5.79:1

AA Pass AAA Fail

Text on black

3.63:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026