#644E2B#644E2B

#644E2B is a dark, muted orange. Relative luminance 0.083; OKLCH L 43.8% C 0.059 H 77.9°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#644E2B
RGB	rgb(100, 78, 43)
HSL	hsl(37, 40%, 28%)
HSV	hsv(37, 57%, 39%)
CMYK	cmyk(0%, 22%, 57%, 60.8%)
CIE-LAB	lab(34.67, 4.47, 24.07)
CIE-LCH	lch(34.67, 24.48, 79.48°)
OKLab	oklab(43.85% 0.0123 0.0574)
OKLCH	oklch(43.85% 0.059 77.9)
XYZ	xyz(8.4164, 8.3330, 3.4502)
Luminance	0.0833 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644E2B #2B4164

analogous

#64312B #644E2B #5D642B

triadic

#644E2B #2B644E #4E2B64

tetradic

#644E2B #2B6431 #2B4164 #642B5D

square

#644E2B #2B6431 #2B4164 #642B5D

split-complementary

#644E2B #2B5D64 #312B64

monochromatic

#151109 #392D19 #644E2B #8F6F3D #B59054

Accessibility & contrast

On white

7.88

#644E2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#644E2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E2B

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644E2B	#FFFFFF	#000000	##FFFFFF
##644E2B	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574E28

Deuteranopia (green-blind)

#5C542C

Tritanopia (blue-blind)

#6C4846

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #644e2b;
/* rgb */ color: rgb(100, 78, 43);
/* oklch */ color: oklch(43.8% 0.059 77.9);

Tailwind

colors: {
  custom: {
    50: '#927f65',
    500: '#644e2b',
    950: '#000000',
  },
}

SCSS

$custom: #644e2b;
$custom-light: #927f65;
$custom-dark: #000000;

JSON

{
  "hex": "#644e2b",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 43
  },
  "hsl": {
    "h": 36.842,
    "s": 39.86,
    "l": 28.039
  },
  "oklch": {
    "l": 0.43845,
    "c": 0.05867,
    "h": 77.9
  },
  "luminance": 0.08333
}

Semantic roles & 50–950 ramp

primary

#644E2B

secondary

#556E96

accent

#86D058

background

#F9F7F6

surface

#F1EEEB

border

#CBC9C6

text

#0D0A05

muted

#7E7C7A

Preview Lab

Preview with #644E2B

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

Preview Lab → · Contrast checker → · Palette generator →