#644B1A#644B1A

#644B1A is a dark, moderate orange. Relative luminance 0.078; OKLCH L 42.9% C 0.073 H 81.2°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX#644B1A
RGBrgb(100, 75, 26)
HSLhsl(40, 59%, 25%)
HSVhsv(40, 74%, 39%)
CMYKcmyk(0%, 25%, 74%, 60.8%)
CIE-LABlab(33.60, 4.96, 32.16)
CIE-LCHlch(33.60, 32.54, 81.24°)
OKLaboklab(42.94% 0.0112 0.0724)
OKLCHoklch(42.94% 0.073 81.2)
XYZxyz(7.9585, 7.8166, 2.0667)
Luminance0.0782 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644B1A #1A3364
analogous
#64261A #644B1A #58641A
triadic
#644B1A #1A644B #4B1A64
tetradic
#644B1A #1A6426 #1A3364 #641A58
square
#644B1A #1A6426 #1A3364 #641A58
split-complementary
#644B1A #1A5864 #261A64
monochromatic
#181206 #33270D #644B1A #956F27 #C59433

Accessibility & contrast

On white

8.19
#644B1A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.56
#644B1A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644B1A
8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644B1A#FFFFFF#000000##FFFFFF
##644B1A1.008.192.568.19
#FFFFFF8.191.0021.001.00
#0000002.5621.001.0021.00
##FFFFFF8.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#554B14
Deuteranopia (green-blind)
#5B521C
Tritanopia (blue-blind)
#6D4441
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #644b1a;
/* rgb */ color: rgb(100, 75, 26);
/* oklch */ color: oklch(42.9% 0.073 81.2);
Tailwind
colors: {
  custom: {
    50: '#937d59',
    500: '#644b1a',
    950: '#000000',
  },
}
SCSS
$custom: #644b1a;
$custom-light: #937d59;
$custom-dark: #000000;
JSON
{
  "hex": "#644b1a",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 26
  },
  "hsl": {
    "h": 39.73,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.4294,
    "c": 0.07322,
    "h": 81.2
  },
  "luminance": 0.07816
}

Semantic roles & 50–950 ramp

primary
#644B1A
secondary
#405E9A
accent
#7BE246
background
#F9F7F5
surface
#F2EEE9
border
#CCC9C5
text
#0D0904
muted
#7E7B79

Preview Lab

Preview with #644B1A

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

Preview Lab → · Contrast checker → · Palette generator →

#644B1A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva