#642728#642728

#642728 is a dark, moderate red. Relative luminance 0.043; OKLCH L 36.1% C 0.089 H 21.6°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#642728
RGB	rgb(100, 39, 40)
HSL	hsl(359, 44%, 27%)
HSV	hsv(359, 61%, 39%)
CMYK	cmyk(0%, 61%, 60%, 60.8%)
CIE-LAB	lab(24.68, 27.68, 13.27)
CIE-LCH	lch(24.68, 30.69, 25.61°)
OKLab	oklab(36.14% 0.0824 0.0326)
OKLCH	oklch(36.14% 0.089 21.6)
XYZ	xyz(6.3646, 4.3143, 2.5047)
Luminance	0.0431 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642728 #276463

analogous

#642747 #642728 #644427

triadic

#642728 #286427 #272864

tetradic

#642728 #476427 #276463 #442764

square

#642728 #476427 #276463 #442764

split-complementary

#642728 #276444 #274764

monochromatic

#160909 #381616 #642728 #90383A #B94C4E

Accessibility & contrast

On white

11.27

#642728 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#642728 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642728

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642728	#FFFFFF	#000000	##FFFFFF
##642728	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363328

Deuteranopia (green-blind)

#453F27

Tritanopia (blue-blind)

#6E1D28

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #642728;
/* rgb */ color: rgb(100, 39, 40);
/* oklch */ color: oklch(36.1% 0.089 21.6);

Tailwind

colors: {
  custom: {
    50: '#946461',
    500: '#642728',
    950: '#000000',
  },
}

SCSS

$custom: #642728;
$custom-light: #946461;
$custom-dark: #000000;

JSON

{
  "hex": "#642728",
  "rgb": {
    "r": 100,
    "g": 39,
    "b": 40
  },
  "hsl": {
    "h": 359.016,
    "s": 43.885,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36137,
    "c": 0.08858,
    "h": 21.6
  },
  "luminance": 0.04314
}

Semantic roles & 50–950 ramp

primary

#642728

secondary

#509796

accent

#D4D254

background

#F9F6F5

surface

#F2EBE9

border

#CCC6C5

text

#0E0505

muted

#7E7A79

Preview Lab

Preview with #642728

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

Preview Lab → · Contrast checker → · Palette generator →