#644F36#644F36

#644F36 is a dark, muted orange. Relative luminance 0.086; OKLCH L 44.3% C 0.047 H 71.0°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX#644F36
RGBrgb(100, 79, 54)
HSLhsl(33, 30%, 30%)
HSVhsv(33, 46%, 39%)
CMYKcmyk(0%, 21%, 46%, 60.8%)
CIE-LABlab(35.14, 5.06, 18.09)
CIE-LCHlch(35.14, 18.79, 74.37°)
OKLaboklab(44.28% 0.0154 0.0446)
OKLCHoklch(44.28% 0.047 71)
XYZxyz(8.7177, 8.5681, 4.6839)
Luminance0.0857 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644F36 #364B64
analogous
#643836 #644F36 #626436
triadic
#644F36 #36644F #4F3664
tetradic
#644F36 #366438 #364B64 #643662
square
#644F36 #366438 #364B64 #643662
split-complementary
#644F36 #366264 #383664
monochromatic
#15100B #3C3021 #644F36 #8C6E4B #AD8D67

Accessibility & contrast

On white

7.74
#644F36 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.71
#644F36 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644F36
7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644F36#FFFFFF#000000##FFFFFF
##644F361.007.742.717.74
#FFFFFF7.741.0021.001.00
#0000002.7121.001.0021.00
##FFFFFF7.741.0021.001.00

Color blindness preview

Protanopia (red-blind)
#565034
Deuteranopia (green-blind)
#5B5537
Tritanopia (blue-blind)
#6B4A49
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #644f36;
/* rgb */ color: rgb(100, 79, 54);
/* oklch */ color: oklch(44.3% 0.047 71.0);
Tailwind
colors: {
  custom: {
    50: '#91806d',
    500: '#644f36',
    950: '#000000',
  },
}
SCSS
$custom: #644f36;
$custom-light: #91806d;
$custom-dark: #000000;
JSON
{
  "hex": "#644f36",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 54
  },
  "hsl": {
    "h": 32.609,
    "s": 29.87,
    "l": 30.196
  },
  "oklch": {
    "l": 0.44275,
    "c": 0.04718,
    "h": 71
  },
  "luminance": 0.08568
}

Semantic roles & 50–950 ramp

primary
#644F36
secondary
#617995
accent
#90C662
background
#F9F7F6
surface
#F1EEEB
border
#CBC9C6
text
#0D0A07
muted
#7E7C7A

Preview Lab

Preview with #644F36

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

Preview Lab → · Contrast checker → · Palette generator →

#644F36 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva