#644641#644641

#644641 is a dark, muted red. Relative luminance 0.075; OKLCH L 42.6% C 0.043 H 29.5°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX#644641
RGBrgb(100, 70, 65)
HSLhsl(9, 21%, 32%)
HSVhsv(9, 35%, 39%)
CMYKcmyk(0%, 30%, 35%, 60.8%)
CIE-LABlab(32.86, 12.12, 8.13)
CIE-LCHlch(32.86, 14.60, 33.85°)
OKLaboklab(42.58% 0.037 0.021)
OKLCHoklch(42.58% 0.043 29.5)
XYZxyz(8.4001, 7.4718, 5.9998)
Luminance0.0747 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644641 #415F64
analogous
#64414E #644641 #645741
triadic
#644641 #416446 #464164
tetradic
#644641 #4E6441 #415F64 #574164
square
#644641 #4E6441 #415F64 #574164
split-complementary
#644641 #416457 #414E64
monochromatic
#1A1211 #3F2C29 #644641 #896059 #A77F78

Accessibility & contrast

On white

8.42
#644641 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.49
#644641 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644641
8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644641#FFFFFF#000000##FFFFFF
##6446411.008.422.498.42
#FFFFFF8.421.0021.001.00
#0000002.4921.001.0021.00
##FFFFFF8.421.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4C4A41
Deuteranopia (green-blind)
#535041
Tritanopia (blue-blind)
#6B4245
Achromatopsia (no color)
#4D4D4D

Design tokens & code

CSS
--color: #644641;
/* rgb */ color: rgb(100, 70, 65);
/* oklch */ color: oklch(42.6% 0.043 29.5);
Tailwind
colors: {
  custom: {
    50: '#917975',
    500: '#644641',
    950: '#000000',
  },
}
SCSS
$custom: #644641;
$custom-light: #917975;
$custom-dark: #000000;
JSON
{
  "hex": "#644641",
  "rgb": {
    "r": 100,
    "g": 70,
    "b": 65
  },
  "hsl": {
    "h": 8.571,
    "s": 21.212,
    "l": 32.353
  },
  "oklch": {
    "l": 0.42578,
    "c": 0.04252,
    "h": 29.5
  },
  "luminance": 0.07471
}

Semantic roles & 50–950 ramp

primary
#644641
secondary
#6E8E93
accent
#B2BE6A
background
#F9F7F7
surface
#F1EDED
border
#CBC8C8
text
#0D0908
muted
#7E7B7B

Preview Lab

Preview with #644641

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#644641 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva