#644E31#644E31

#644E31 is a dark, muted orange. Relative luminance 0.084; OKLCH L 44.0% C 0.052 H 73.4°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX#644E31
RGBrgb(100, 78, 49)
HSLhsl(34, 34%, 29%)
HSVhsv(34, 51%, 39%)
CMYKcmyk(0%, 22%, 51%, 60.8%)
CIE-LABlab(34.76, 5.09, 20.63)
CIE-LCHlch(34.76, 21.25, 76.13°)
OKLaboklab(43.95% 0.0149 0.0502)
OKLCHoklch(43.95% 0.052 73.4)
XYZxyz(8.5346, 8.3803, 4.0732)
Luminance0.0838 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644E31 #314764
analogous
#643531 #644E31 #616431
triadic
#644E31 #31644E #4E3164
tetradic
#644E31 #316435 #314764 #643161
square
#644E31 #316435 #314764 #643161
split-complementary
#644E31 #316164 #353164
monochromatic
#15100A #3B2E1D #644E31 #8D6E45 #B18D5F

Accessibility & contrast

On white

7.85
#644E31 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.68
#644E31 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E31
7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644E31#FFFFFF#000000##FFFFFF
##644E311.007.852.687.85
#FFFFFF7.851.0021.001.00
#0000002.6821.001.0021.00
##FFFFFF7.851.0021.001.00

Color blindness preview

Protanopia (red-blind)
#564F2F
Deuteranopia (green-blind)
#5B5432
Tritanopia (blue-blind)
#6C4847
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #644e31;
/* rgb */ color: rgb(100, 78, 49);
/* oklch */ color: oklch(44.0% 0.052 73.4);
Tailwind
colors: {
  custom: {
    50: '#927f69',
    500: '#644e31',
    950: '#000000',
  },
}
SCSS
$custom: #644e31;
$custom-light: #927f69;
$custom-dark: #000000;
JSON
{
  "hex": "#644e31",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 49
  },
  "hsl": {
    "h": 34.118,
    "s": 34.228,
    "l": 29.216
  },
  "oklch": {
    "l": 0.43951,
    "c": 0.05232,
    "h": 73.4
  },
  "luminance": 0.0838
}

Semantic roles & 50–950 ramp

primary
#644E31
secondary
#5C7495
accent
#8CCA5D
background
#F9F7F6
surface
#F1EEEB
border
#CBC9C6
text
#0D0A06
muted
#7E7C7A

Preview Lab

Preview with #644E31

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

Preview Lab → · Contrast checker → · Palette generator →

#644E31 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva