#644E18#644E18

#644E18 is a dark, moderate orange. Relative luminance 0.082; OKLCH L 43.6% C 0.076 H 86.0°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX#644E18
RGBrgb(100, 78, 24)
HSLhsl(43, 61%, 24%)
HSVhsv(43, 76%, 39%)
CMYKcmyk(0%, 22%, 76%, 60.8%)
CIE-LABlab(34.45, 3.00, 34.01)
CIE-LCHlch(34.45, 34.14, 84.96°)
OKLaboklab(43.6% 0.0053 0.0759)
OKLCHoklch(43.6% 0.076 86)
XYZxyz(8.1453, 8.2246, 2.0225)
Luminance0.0822 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644E18 #182E64
analogous
#642818 #644E18 #546418
triadic
#644E18 #18644E #4E1864
tetradic
#644E18 #186428 #182E64 #641854
square
#644E18 #186428 #182E64 #641854
split-complementary
#644E18 #185464 #281864
monochromatic
#191306 #33280C #644E18 #957424 #C79B30

Accessibility & contrast

On white

7.94
#644E18 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.64
#644E18 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E18
7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644E18#FFFFFF#000000##FFFFFF
##644E181.007.942.647.94
#FFFFFF7.941.0021.001.00
#0000002.6421.001.0021.00
##FFFFFF7.941.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584E11
Deuteranopia (green-blind)
#5D531A
Tritanopia (blue-blind)
#6D4743
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #644e18;
/* rgb */ color: rgb(100, 78, 24);
/* oklch */ color: oklch(43.6% 0.076 86.0);
Tailwind
colors: {
  custom: {
    50: '#937f58',
    500: '#644e18',
    950: '#000000',
  },
}
SCSS
$custom: #644e18;
$custom-light: #937f58;
$custom-dark: #000000;
JSON
{
  "hex": "#644e18",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 24
  },
  "hsl": {
    "h": 42.632,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.43601,
    "c": 0.07603,
    "h": 86
  },
  "luminance": 0.08224
}

Semantic roles & 50–950 ramp

primary
#644E18
secondary
#3E589A
accent
#72E443
background
#F9F7F5
surface
#F2EEE9
border
#CCC9C5
text
#0D0A03
muted
#7E7C78

Preview Lab

Preview with #644E18

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

Preview Lab → · Contrast checker → · Palette generator →

#644E18 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva