#642818#642818

#642818 is a dark, moderate red. Relative luminance 0.043; OKLCH L 36.0% C 0.091 H 35.9°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#642818
RGB	rgb(100, 40, 24)
HSL	hsl(13, 61%, 24%)
HSV	hsv(13, 76%, 39%)
CMYK	cmyk(0%, 60%, 76%, 60.8%)
CIE-LAB	lab(24.62, 25.97, 23.55)
CIE-LCH	lch(24.62, 35.06, 42.20°)
OKLab	oklab(36% 0.0738 0.0535)
OKLCH	oklch(36% 0.091 35.9)
XYZ	xyz(6.1798, 4.2937, 1.3673)
Luminance	0.0429 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642818 #185464

analogous

#64182E #642818 #644E18

triadic

#642818 #186428 #281864

tetradic

#642818 #2E6418 #185464 #4E1864

square

#642818 #2E6418 #185464 #4E1864

split-complementary

#642818 #18644E #182E64

monochromatic

#190A06 #33140C #642818 #953C24 #C74F30

Accessibility & contrast

On white

11.30

#642818 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#642818 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642818

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642818	#FFFFFF	#000000	##FFFFFF
##642818	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383216

Deuteranopia (green-blind)

#473F16

Tritanopia (blue-blind)

#6E1B24

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #642818;
/* rgb */ color: rgb(100, 40, 24);
/* oklch */ color: oklch(36.0% 0.091 35.9);

Tailwind

colors: {
  custom: {
    50: '#966455',
    500: '#642818',
    950: '#000000',
  },
}

SCSS

$custom: #642818;
$custom-light: #966455;
$custom-dark: #000000;

JSON

{
  "hex": "#642818",
  "rgb": {
    "r": 100,
    "g": 40,
    "b": 24
  },
  "hsl": {
    "h": 12.632,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35999,
    "c": 0.09117,
    "h": 35.9
  },
  "luminance": 0.04293
}

Semantic roles & 50–950 ramp

primary

#642818

secondary

#3E879A

accent

#C3E443

background

#F9F6F5

surface

#F2EBE8

border

#CCC6C4

text

#0E0503

muted

#7E7A78

Preview Lab

Preview with #642818

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

Preview Lab → · Contrast checker → · Palette generator →