#666F4B

#666F4B

Color Values

HEX

#666F4B

RGB

102, 111, 75

HSL

75.0, 19.4%, 36.5%

HSV

75.0, 32.4%, 43.5%

CMYK

8.1%, 0.0%, 32.4%, 56.5%

OKLCH

0.5242 0.0546 119.7

Properties

Cool Dark Nearest: RAL 6013 Reed Green

Color Harmonies

Complementary

#666F4B

#544B6F

Analogous

#6F664B

#546F4B

#666F4B

Triadic

#666F4B

#4B666F

#6F4B66

Split Complementary

#666F4B

#4B546F

#664B6F

Tetradic

#666F4B

#4B6F66

#544B6F

#6F4B54

Color Blindness Simulation

Original

#666F4B

Protanopia

#6A6A54

Deuteranopia

#696956

Tritanopia

#665B5C

Achromatopsia

#6A6A6A

CSS Usage

background-color: #666F4B;
color: #666F4B;
border-color: #666F4B;
Nearest Tailwind: Stone 500 #78716C

Tailwind Shades

50
#F8F9F6
100
#EFF0EA
200
#DFE2D4
300
#C8CEB6
400
#AAB38E
500
#8C9867
600
#707A52
700
#5A6142
800
#464C33
900
#353928
950
#212419

Contrast Checker

Text on white

5.33:1

AA Pass AAA Fail

Text on black

3.94:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026