#644B27#644B27

#644B27 is a dark, moderate orange. Relative luminance 0.079; OKLCH L 43.1% C 0.062 H 74.9°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX#644B27
RGBrgb(100, 75, 39)
HSLhsl(35, 44%, 27%)
HSVhsv(35, 61%, 39%)
CMYKcmyk(0%, 25%, 61%, 60.8%)
CIE-LABlab(33.75, 5.94, 25.28)
CIE-LCHlch(33.75, 25.97, 76.78°)
OKLaboklab(43.11% 0.0161 0.0596)
OKLCHoklch(43.11% 0.062 74.9)
XYZxyz(8.1382, 7.8885, 3.0131)
Luminance0.0789 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644B27 #274064
analogous
#642D27 #644B27 #5F6427
triadic
#644B27 #27644B #4B2764
tetradic
#644B27 #27642D #274064 #64275F
square
#644B27 #27642D #274064 #64275F
split-complementary
#644B27 #275F64 #2D2764
monochromatic
#161109 #382A16 #644B27 #906C38 #B98D4C

Accessibility & contrast

On white

8.15
#644B27 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.58
#644B27 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644B27
8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644B27#FFFFFF#000000##FFFFFF
##644B271.008.152.588.15
#FFFFFF8.151.0021.001.00
#0000002.5821.001.0021.00
##FFFFFF8.151.0021.001.00

Color blindness preview

Protanopia (red-blind)
#544C24
Deuteranopia (green-blind)
#5A5228
Tritanopia (blue-blind)
#6C4443
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #644b27;
/* rgb */ color: rgb(100, 75, 39);
/* oklch */ color: oklch(43.1% 0.062 74.9);
Tailwind
colors: {
  custom: {
    50: '#927d62',
    500: '#644b27',
    950: '#000000',
  },
}
SCSS
$custom: #644b27;
$custom-light: #927d62;
$custom-dark: #000000;
JSON
{
  "hex": "#644b27",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 39
  },
  "hsl": {
    "h": 35.41,
    "s": 43.885,
    "l": 27.255
  },
  "oklch": {
    "l": 0.43108,
    "c": 0.06174,
    "h": 74.9
  },
  "luminance": 0.07888
}

Semantic roles & 50–950 ramp

primary
#644B27
secondary
#506D97
accent
#88D454
background
#F9F7F5
surface
#F1EEEA
border
#CBC9C6
text
#0D0905
muted
#7E7B79

Preview Lab

Preview with #644B27

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

Preview Lab → · Contrast checker → · Palette generator →

#644B27 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva