#644E19#644E19

#644E19 is a dark, moderate orange. Relative luminance 0.082; OKLCH L 43.6% C 0.075 H 85.8°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX#644E19
RGBrgb(100, 78, 25)
HSLhsl(42, 60%, 25%)
HSVhsv(42, 75%, 39%)
CMYKcmyk(0%, 22%, 75%, 60.8%)
CIE-LABlab(34.45, 3.06, 33.54)
CIE-LCHlch(34.45, 33.68, 84.79°)
OKLaboklab(43.61% 0.0056 0.0751)
OKLCHoklch(43.61% 0.075 85.8)
XYZxyz(8.1559, 8.2288, 2.0783)
Luminance0.0823 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644E19 #192F64
analogous
#642919 #644E19 #556419
triadic
#644E19 #19644E #4E1964
tetradic
#644E19 #196429 #192F64 #641955
square
#644E19 #196429 #192F64 #641955
split-complementary
#644E19 #195564 #291964
monochromatic
#181306 #33280D #644E19 #957425 #C69A31

Accessibility & contrast

On white

7.94
#644E19 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.65
#644E19 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E19
7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644E19#FFFFFF#000000##FFFFFF
##644E191.007.942.657.94
#FFFFFF7.941.0021.001.00
#0000002.6521.001.0021.00
##FFFFFF7.941.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584E12
Deuteranopia (green-blind)
#5D531B
Tritanopia (blue-blind)
#6D4743
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #644e19;
/* rgb */ color: rgb(100, 78, 25);
/* oklch */ color: oklch(43.6% 0.075 85.8);
Tailwind
colors: {
  custom: {
    50: '#937f59',
    500: '#644e19',
    950: '#000000',
  },
}
SCSS
$custom: #644e19;
$custom-light: #937f59;
$custom-dark: #000000;
JSON
{
  "hex": "#644e19",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 25
  },
  "hsl": {
    "h": 42.4,
    "s": 60,
    "l": 24.51
  },
  "oklch": {
    "l": 0.4361,
    "c": 0.07528,
    "h": 85.8
  },
  "luminance": 0.08228
}

Semantic roles & 50–950 ramp

primary
#644E19
secondary
#3F5A9A
accent
#73E345
background
#F9F7F5
surface
#F2EEE9
border
#CCC9C5
text
#0D0A04
muted
#7E7C79

Preview Lab

Preview with #644E19

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

Preview Lab → · Contrast checker → · Palette generator →

#644E19 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva