#644E4D

#644E4D

Color Values

HEX

#644E4D

RGB

100, 78, 77

HSL

2.6, 13.0%, 34.7%

HSV

2.6, 23.0%, 39.2%

CMYK

0.0%, 22.0%, 23.0%, 60.8%

OKLCH

0.4464 0.0298 21.4

Properties

Warm Dark Nearest: NCS S 7000-N Dark Grey

Color Harmonies

Complementary

#644E4D

#4D6364

Analogous

#644D57

#64594D

#644E4D

Triadic

#644E4D

#4D644E

#4E4D64

Split Complementary

#644E4D

#4D6459

#4D5764

Tetradic

#644E4D

#57644D

#4D6364

#594D64

Color Blindness Simulation

Original

#644E4D

Protanopia

#5A5A4D

Deuteranopia

#5C5D4D

Tritanopia

#634D4D

Achromatopsia

#535353

CSS Usage

background-color: #644E4D;
color: #644E4D;
border-color: #644E4D;
Nearest Tailwind: Stone 600 #57534E

Tailwind Shades

50
#F8F7F7
100
#EFEBEB
200
#E0D7D7
300
#CABBBA
400
#AD9594
500
#90706F
600
#735A59
700
#5C4847
800
#483837
900
#362B2B
950
#221B1B

Contrast Checker

Text on white

7.67:1

AA Pass AAA Pass

Text on black

2.74:1

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