#644C4E#644C4E

#644C4E is a dark, muted red. Relative luminance 0.084; OKLCH L 44.2% C 0.033 H 12.9°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#644C4E
RGB	rgb(100, 76, 78)
HSL	hsl(355, 14%, 35%)
HSV	hsv(355, 24%, 39%)
CMYK	cmyk(0%, 24%, 22%, 60.8%)
CIE-LAB	lab(34.86, 10.47, 2.73)
CIE-LCH	lch(34.86, 10.82, 14.59°)
OKLab	oklab(44.24% 0.0318 0.0073)
OKLCH	oklch(44.24% 0.033 12.9)
XYZ	xyz(9.2152, 8.4287, 8.3477)
Luminance	0.0843 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644C4E #4C6462

analogous

#644C5A #644C4E #64564C

triadic

#644C4E #4E644C #4C4E64

tetradic

#644C4E #5A644C #4C6462 #564C64

square

#644C4E #5A644C #4C6462 #564C64

split-complementary

#644C4E #4C6456 #4C5A64

monochromatic

#1E1718 #413233 #644C4E #876669 #A48789

Accessibility & contrast

On white

7.82

#644C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#644C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644C4E

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644C4E	#FFFFFF	#000000	##FFFFFF
##644C4E	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504F4E

Deuteranopia (green-blind)

#55544E

Tritanopia (blue-blind)

#694A4D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #644c4e;
/* rgb */ color: rgb(100, 76, 78);
/* oklch */ color: oklch(44.2% 0.033 12.9);

Tailwind

colors: {
  custom: {
    50: '#907e7f',
    500: '#644c4e',
    950: '#000000',
  },
}

SCSS

$custom: #644c4e;
$custom-light: #907e7f;
$custom-dark: #000000;

JSON

{
  "hex": "#644c4e",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 78
  },
  "hsl": {
    "h": 355,
    "s": 13.636,
    "l": 34.51
  },
  "oklch": {
    "l": 0.44244,
    "c": 0.03266,
    "h": 12.9
  },
  "luminance": 0.08428
}

Semantic roles & 50–950 ramp

primary

#644C4E

secondary

#7A9190

accent

#B6B171

background

#F8F7F7

surface

#F0EEEE

border

#CBC9C9

text

#0C090A

muted

#7D7B7C

Preview Lab

Preview with #644C4E

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

Preview Lab → · Contrast checker → · Palette generator →