#644D40#644D40

#644D40 is a dark, muted orange. Relative luminance 0.084; OKLCH L 44.1% C 0.037 H 50.9°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX#644D40
RGBrgb(100, 77, 64)
HSLhsl(22, 22%, 32%)
HSVhsv(22, 36%, 39%)
CMYKcmyk(0%, 23%, 36%, 60.8%)
CIE-LABlab(34.78, 7.63, 11.43)
CIE-LCHlch(34.78, 13.74, 56.28°)
OKLaboklab(44.06% 0.0236 0.0291)
OKLCHoklch(44.06% 0.037 50.9)
XYZxyz(8.8350, 8.3877, 6.0031)
Luminance0.0839 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644D40 #405764
analogous
#644045 #644D40 #645F40
triadic
#644D40 #40644D #4D4064
tetradic
#644D40 #456440 #405764 #5F4064
square
#644D40 #456440 #405764 #5F4064
split-complementary
#644D40 #40645F #404564
monochromatic
#191410 #3F3028 #644D40 #896A58 #A88877

Accessibility & contrast

On white

7.84
#644D40 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.68
#644D40 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644D40
7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644D40#FFFFFF#000000##FFFFFF
##644D401.007.842.687.84
#FFFFFF7.841.0021.001.00
#0000002.6821.001.0021.00
##FFFFFF7.841.0021.001.00

Color blindness preview

Protanopia (red-blind)
#534F3F
Deuteranopia (green-blind)
#595440
Tritanopia (blue-blind)
#6A4949
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #644d40;
/* rgb */ color: rgb(100, 77, 64);
/* oklch */ color: oklch(44.1% 0.037 50.9);
Tailwind
colors: {
  custom: {
    50: '#917e74',
    500: '#644d40',
    950: '#000000',
  },
}
SCSS
$custom: #644d40;
$custom-light: #917e74;
$custom-dark: #000000;
JSON
{
  "hex": "#644d40",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 64
  },
  "hsl": {
    "h": 21.667,
    "s": 21.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.44061,
    "c": 0.03747,
    "h": 50.9
  },
  "luminance": 0.08387
}

Semantic roles & 50–950 ramp

primary
#644D40
secondary
#6C8593
accent
#A0BE69
background
#F8F7F7
surface
#F0EEED
border
#CBC9C8
text
#0D0A08
muted
#7D7C7B

Preview Lab

Preview with #644D40

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

Preview Lab → · Contrast checker → · Palette generator →

#644D40 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva