#644E1F#644E1F

#644E1F is a dark, moderate orange. Relative luminance 0.083; OKLCH L 43.7% C 0.070 H 83.8°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX#644E1F
RGBrgb(100, 78, 31)
HSLhsl(41, 53%, 26%)
HSVhsv(41, 69%, 39%)
CMYKcmyk(0%, 22%, 69%, 60.8%)
CIE-LABlab(34.51, 3.45, 30.58)
CIE-LCHlch(34.51, 30.77, 83.56°)
OKLaboklab(43.68% 0.0076 0.0699)
OKLCHoklch(43.68% 0.07 83.8)
XYZxyz(8.2277, 8.2576, 2.4566)
Luminance0.0826 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644E1F #1F3564
analogous
#642B1F #644E1F #57641F
triadic
#644E1F #1F644E #4E1F64
tetradic
#644E1F #1F642B #1F3564 #641F57
square
#644E1F #1F642B #1F3564 #641F57
split-complementary
#644E1F #1F5764 #2B1F64
monochromatic
#171207 #352A11 #644E1F #93722D #C1973C

Accessibility & contrast

On white

7.92
#644E1F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.65
#644E1F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E1F
7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644E1F#FFFFFF#000000##FFFFFF
##644E1F1.007.922.657.92
#FFFFFF7.921.0021.001.00
#0000002.6521.001.0021.00
##FFFFFF7.921.0021.001.00

Color blindness preview

Protanopia (red-blind)
#584E1A
Deuteranopia (green-blind)
#5D5421
Tritanopia (blue-blind)
#6D4744
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #644e1f;
/* rgb */ color: rgb(100, 78, 31);
/* oklch */ color: oklch(43.7% 0.070 83.8);
Tailwind
colors: {
  custom: {
    50: '#937f5d',
    500: '#644e1f',
    950: '#000000',
  },
}
SCSS
$custom: #644e1f;
$custom-light: #937f5d;
$custom-dark: #000000;
JSON
{
  "hex": "#644e1f",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 31
  },
  "hsl": {
    "h": 40.87,
    "s": 52.672,
    "l": 25.686
  },
  "oklch": {
    "l": 0.43675,
    "c": 0.07031,
    "h": 83.8
  },
  "luminance": 0.08257
}

Semantic roles & 50–950 ramp

primary
#644E1F
secondary
#466198
accent
#7ADC4C
background
#F9F7F5
surface
#F2EEE9
border
#CCC9C5
text
#0D0A04
muted
#7E7C79

Preview Lab

Preview with #644E1F

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

Preview Lab → · Contrast checker → · Palette generator →

#644E1F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva