#644C42#644C42

#644C42 is a dark, muted orange. Relative luminance 0.083; OKLCH L 43.9% C 0.037 H 43.7°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX#644C42
RGBrgb(100, 76, 66)
HSLhsl(18, 20%, 33%)
HSVhsv(18, 34%, 39%)
CMYKcmyk(0%, 24%, 34%, 60.8%)
CIE-LABlab(34.54, 8.54, 9.85)
CIE-LCHlch(34.54, 13.04, 49.07°)
OKLaboklab(43.89% 0.0264 0.0252)
OKLCHoklch(43.89% 0.037 43.7)
XYZxyz(8.8235, 8.2720, 6.2851)
Luminance0.0827 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644C42 #425A64
analogous
#644249 #644C42 #645D42
triadic
#644C42 #42644C #4C4264
tetradic
#644C42 #496442 #425A64 #5D4264
square
#644C42 #496442 #425A64 #5D4264
split-complementary
#644C42 #42645D #424964
monochromatic
#1A1411 #3F302A #644C42 #89685A #A7877A

Accessibility & contrast

On white

7.91
#644C42 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.65
#644C42 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644C42
7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644C42#FFFFFF#000000##FFFFFF
##644C421.007.912.657.91
#FFFFFF7.911.0021.001.00
#0000002.6521.001.0021.00
##FFFFFF7.911.0021.001.00

Color blindness preview

Protanopia (red-blind)
#524E41
Deuteranopia (green-blind)
#585342
Tritanopia (blue-blind)
#6A4849
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #644c42;
/* rgb */ color: rgb(100, 76, 66);
/* oklch */ color: oklch(43.9% 0.037 43.7);
Tailwind
colors: {
  custom: {
    50: '#917e76',
    500: '#644c42',
    950: '#000000',
  },
}
SCSS
$custom: #644c42;
$custom-light: #917e76;
$custom-dark: #000000;
JSON
{
  "hex": "#644c42",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 66
  },
  "hsl": {
    "h": 17.647,
    "s": 20.482,
    "l": 32.549
  },
  "oklch": {
    "l": 0.43894,
    "c": 0.03651,
    "h": 43.7
  },
  "luminance": 0.08272
}

Semantic roles & 50–950 ramp

primary
#644C42
secondary
#6F8893
accent
#A5BD6B
background
#F8F7F7
surface
#F0EEED
border
#CBC9C8
text
#0D0908
muted
#7D7B7B

Preview Lab

Preview with #644C42

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

Preview Lab → · Contrast checker → · Palette generator →

#644C42 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva