#644E1B#644E1B

#644E1B is a dark, moderate orange. Relative luminance 0.082; OKLCH L 43.6% C 0.074 H 85.2°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#644E1B
RGB	rgb(100, 78, 27)
HSL	hsl(42, 57%, 25%)
HSV	hsv(42, 73%, 39%)
CMYK	cmyk(0%, 22%, 73%, 60.8%)
CIE-LAB	lab(34.47, 3.18, 32.58)
CIE-LCH	lch(34.47, 32.74, 84.43°)
OKLab	oklab(43.63% 0.0062 0.0734)
OKLCH	oklch(43.63% 0.074 85.2)
XYZ	xyz(8.1782, 8.2378, 2.1960)
Luminance	0.0824 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644E1B #1B3164

analogous

#642A1B #644E1B #55641B

triadic

#644E1B #1B644E #4E1B64

tetradic

#644E1B #1B642A #1B3164 #641B55

square

#644E1B #1B642A #1B3164 #641B55

split-complementary

#644E1B #1B5564 #2A1B64

monochromatic

#181307 #34280E #644E1B #947428 #C49935

Accessibility & contrast

On white

7.93

#644E1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#644E1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E1B

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644E1B	#FFFFFF	#000000	##FFFFFF
##644E1B	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E15

Deuteranopia (green-blind)

#5D531D

Tritanopia (blue-blind)

#6D4743

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #644e1b;
/* rgb */ color: rgb(100, 78, 27);
/* oklch */ color: oklch(43.6% 0.074 85.2);

Tailwind

colors: {
  custom: {
    50: '#937f5a',
    500: '#644e1b',
    950: '#000000',
  },
}

SCSS

$custom: #644e1b;
$custom-light: #937f5a;
$custom-dark: #000000;

JSON

{
  "hex": "#644e1b",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 27
  },
  "hsl": {
    "h": 41.918,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.43631,
    "c": 0.07369,
    "h": 85.2
  },
  "luminance": 0.08237
}

Semantic roles & 50–950 ramp

primary

#644E1B

secondary

#415C99

accent

#75E147

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0A04

muted

#7E7C79

Preview Lab

Preview with #644E1B

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

Preview Lab → · Contrast checker → · Palette generator →