#666B58

#666B58

Color Values

HEX

#666B58

RGB

102, 107, 88

HSL

75.8, 9.7%, 38.2%

HSV

75.8, 17.8%, 42.0%

CMYK

4.7%, 0.0%, 17.8%, 58.0%

OKLCH

0.5178 0.0296 119.4

Properties

Cool Dark Nearest: RAL 7003 Moss Grey

Color Harmonies

Complementary

#666B58

#5D586B

Analogous

#6B6658

#5C6B58

#666B58

Triadic

#666B58

#58666B

#6B5866

Split Complementary

#666B58

#585C6B

#66586B

Tetradic

#666B58

#586B66

#5D586B

#6B585C

Color Blindness Simulation

Original

#666B58

Protanopia

#68685D

Deuteranopia

#68685E

Tritanopia

#666061

Achromatopsia

#696969

CSS Usage

background-color: #666B58;
color: #666B58;
border-color: #666B58;
Nearest Tailwind: Stone 500 #78716C

Tailwind Shades

50
#F8F8F7
100
#EEEFEC
200
#DDDFD8
300
#C5C8BC
400
#A5AA97
500
#858C73
600
#6B705C
700
#555A4A
800
#43463A
900
#32352C
950
#20211C

Contrast Checker

Text on white

5.51:1

AA Pass AAA Fail

Text on black

3.81:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026