#644A2A#644A2A

#644A2A is a dark, muted orange. Relative luminance 0.078; OKLCH L 42.9% C 0.059 H 70.9°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX#644A2A
RGBrgb(100, 74, 42)
HSLhsl(33, 41%, 28%)
HSVhsv(33, 58%, 39%)
CMYKcmyk(0%, 26%, 58%, 60.8%)
CIE-LABlab(33.51, 6.84, 23.24)
CIE-LCHlch(33.51, 24.22, 73.61°)
OKLaboklab(42.93% 0.0192 0.0554)
OKLCHoklch(42.93% 0.059 70.9)
XYZxyz(8.1226, 7.7746, 3.2629)
Luminance0.0777 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644A2A #2A4464
analogous
#642D2A #644A2A #61642A
triadic
#644A2A #2A644A #4A2A64
tetradic
#644A2A #2A642D #2A4464 #642A61
square
#644A2A #2A642D #2A4464 #642A61
split-complementary
#644A2A #2A6164 #2D2A64
monochromatic
#161009 #392A18 #644A2A #8F6A3C #B68952

Accessibility & contrast

On white

8.22
#644A2A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.55
#644A2A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644A2A
8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644A2A#FFFFFF#000000##FFFFFF
##644A2A1.008.222.558.22
#FFFFFF8.221.0021.001.00
#0000002.5521.001.0021.00
##FFFFFF8.221.0021.001.00

Color blindness preview

Protanopia (red-blind)
#534B27
Deuteranopia (green-blind)
#59512B
Tritanopia (blue-blind)
#6C4442
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #644a2a;
/* rgb */ color: rgb(100, 74, 42);
/* oklch */ color: oklch(42.9% 0.059 70.9);
Tailwind
colors: {
  custom: {
    50: '#927c64',
    500: '#644a2a',
    950: '#000000',
  },
}
SCSS
$custom: #644a2a;
$custom-light: #927c64;
$custom-dark: #000000;
JSON
{
  "hex": "#644a2a",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 42
  },
  "hsl": {
    "h": 33.103,
    "s": 40.845,
    "l": 27.843
  },
  "oklch": {
    "l": 0.42934,
    "c": 0.05864,
    "h": 70.9
  },
  "luminance": 0.07774
}

Semantic roles & 50–950 ramp

primary
#644A2A
secondary
#537196
accent
#8ED157
background
#F9F7F6
surface
#F1EEEB
border
#CBC9C6
text
#0D0905
muted
#7E7B7A

Preview Lab

Preview with #644A2A

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

Preview Lab → · Contrast checker → · Palette generator →

#644A2A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva