#646A56

#646A56

Color Values

HEX

#646A56

RGB

100, 106, 86

HSL

78.0, 10.4%, 37.6%

HSV

78.0, 18.9%, 41.6%

CMYK

5.7%, 0.0%, 18.9%, 58.4%

OKLCH

0.5131 0.0314 121.1

Properties

Cool Dark Nearest: RAL 7003 Moss Grey

Color Harmonies

Complementary

#646A56

#5C566A

Analogous

#6A6656

#5A6A56

#646A56

Triadic

#646A56

#56646A

#6A5664

Split Complementary

#646A56

#565A6A

#66566A

Tetradic

#646A56

#566A66

#5C566A

#6A565A

Color Blindness Simulation

Original

#646A56

Protanopia

#67675B

Deuteranopia

#66665C

Tritanopia

#645F60

Achromatopsia

#676767

CSS Usage

background-color: #646A56;
color: #646A56;
border-color: #646A56;
Nearest Tailwind: Stone 500 #78716C

Tailwind Shades

50
#F8F8F7
100
#EEEFEC
200
#DDDFD8
300
#C4C8BB
400
#A5AA97
500
#858D72
600
#6A715B
700
#555A49
800
#424639
900
#32352C
950
#20211C

Contrast Checker

Text on white

5.62:1

AA Pass AAA Fail

Text on black

3.74:1

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