#644A1B#644A1B

#644A1B is a dark, moderate orange. Relative luminance 0.077; OKLCH L 42.7% C 0.072 H 79.3°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#644A1B
RGB	rgb(100, 74, 27)
HSL	hsl(39, 57%, 25%)
HSV	hsv(39, 73%, 39%)
CMYK	cmyk(0%, 26%, 73%, 60.8%)
CIE-LAB	lab(33.32, 5.64, 31.37)
CIE-LCH	lch(33.32, 31.87, 79.81°)
OKLab	oklab(42.73% 0.0134 0.0709)
OKLCH	oklch(42.73% 0.072 79.3)
XYZ	xyz(7.9026, 7.6866, 2.1041)
Luminance	0.0769 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644A1B #1B3564

analogous

#64261B #644A1B #5A641B

triadic

#644A1B #1B644A #4A1B64

tetradic

#644A1B #1B6426 #1B3564 #641B5A

square

#644A1B #1B6426 #1B3564 #641B5A

split-complementary

#644A1B #1B5A64 #261B64

monochromatic

#181207 #34260E #644A1B #946E28 #C49135

Accessibility & contrast

On white

8.28

#644A1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#644A1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644A1B

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644A1B	#FFFFFF	#000000	##FFFFFF
##644A1B	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544B15

Deuteranopia (green-blind)

#5A511D

Tritanopia (blue-blind)

#6D4340

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #644a1b;
/* rgb */ color: rgb(100, 74, 27);
/* oklch */ color: oklch(42.7% 0.072 79.3);

Tailwind

colors: {
  custom: {
    50: '#937c5a',
    500: '#644a1b',
    950: '#000000',
  },
}

SCSS

$custom: #644a1b;
$custom-light: #937c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#644a1b",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 27
  },
  "hsl": {
    "h": 38.63,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.42726,
    "c": 0.0721,
    "h": 79.3
  },
  "luminance": 0.07686
}

Semantic roles & 50–950 ramp

primary

#644A1B

secondary

#416199

accent

#7EE147

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0904

muted

#7E7B79

Preview Lab

Preview with #644A1B

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

Preview Lab → · Contrast checker → · Palette generator →