#644E40#644E40

#644E40 is a dark, muted orange. Relative luminance 0.085; OKLCH L 44.3% C 0.037 H 54.0°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#644E40
RGB	rgb(100, 78, 64)
HSL	hsl(23, 22%, 32%)
HSV	hsv(23, 36%, 39%)
CMYK	cmyk(0%, 22%, 36%, 60.8%)
CIE-LAB	lab(35.06, 7.01, 11.82)
CIE-LCH	lch(35.06, 13.74, 59.33°)
OKLab	oklab(44.28% 0.0218 0.03)
OKLCH	oklch(44.28% 0.037 54)
XYZ	xyz(8.9055, 8.5287, 6.0266)
Luminance	0.0853 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644E40 #405664

analogous

#644044 #644E40 #646040

triadic

#644E40 #40644E #4E4064

tetradic

#644E40 #446440 #405664 #604064

square

#644E40 #446440 #405664 #604064

split-complementary

#644E40 #406460 #404464

monochromatic

#191410 #3F3128 #644E40 #896B58 #A88A77

Accessibility & contrast

On white

7.76

#644E40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#644E40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644E40

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644E40	#FFFFFF	#000000	##FFFFFF
##644E40	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54503F

Deuteranopia (green-blind)

#595440

Tritanopia (blue-blind)

#6A4A4A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #644e40;
/* rgb */ color: rgb(100, 78, 64);
/* oklch */ color: oklch(44.3% 0.037 54.0);

Tailwind

colors: {
  custom: {
    50: '#917f74',
    500: '#644e40',
    950: '#000000',
  },
}

SCSS

$custom: #644e40;
$custom-light: #917f74;
$custom-dark: #000000;

JSON

{
  "hex": "#644e40",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 64
  },
  "hsl": {
    "h": 23.333,
    "s": 21.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.44281,
    "c": 0.0371,
    "h": 54
  },
  "luminance": 0.08528
}

Semantic roles & 50–950 ramp

primary

#644E40

secondary

#6C8493

accent

#9DBE69

background

#F8F7F7

surface

#F0EEED

border

#CBC9C8

text

#0D0A08

muted

#7D7C7B

Preview Lab

Preview with #644E40

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

Preview Lab → · Contrast checker → · Palette generator →