#642F2F#642F2F

#642F2F is a dark, moderate red. Relative luminance 0.049; OKLCH L 37.6% C 0.077 H 21.4°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#642F2F
RGB	rgb(100, 47, 47)
HSL	hsl(0, 36%, 29%)
HSV	hsv(0, 53%, 39%)
CMYK	cmyk(0%, 53%, 53%, 60.8%)
CIE-LAB	lab(26.59, 23.86, 11.15)
CIE-LCH	lch(26.59, 26.34, 25.06°)
OKLab	oklab(37.63% 0.0715 0.028)
OKLCH	oklch(37.63% 0.077 21.4)
XYZ	xyz(6.7856, 4.9483, 3.2865)
Luminance	0.0495 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642F2F #2F6464

analogous

#642F4A #642F2F #644A2F

triadic

#642F2F #2F642F #2F2F64

tetradic

#642F2F #4A642F #2F6464 #4A2F64

square

#642F2F #4A642F #2F6464 #4A2F64

split-complementary

#642F2F #2F644A #2F4A64

monochromatic

#150A0A #3A1B1B #642F2F #8E4343 #B25B5B

Accessibility & contrast

On white

10.55

#642F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#642F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642F2F

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642F2F	#FFFFFF	#000000	##FFFFFF
##642F2F	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B382F

Deuteranopia (green-blind)

#48432E

Tritanopia (blue-blind)

#6D272F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #642f2f;
/* rgb */ color: rgb(100, 47, 47);
/* oklch */ color: oklch(37.6% 0.077 21.4);

Tailwind

colors: {
  custom: {
    50: '#936967',
    500: '#642f2f',
    950: '#000000',
  },
}

SCSS

$custom: #642f2f;
$custom-light: #936967;
$custom-dark: #000000;

JSON

{
  "hex": "#642f2f",
  "rgb": {
    "r": 100,
    "g": 47,
    "b": 47
  },
  "hsl": {
    "h": 0,
    "s": 36.054,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37627,
    "c": 0.07675,
    "h": 21.4
  },
  "luminance": 0.04948
}

Semantic roles & 50–950 ramp

primary

#642F2F

secondary

#599696

accent

#CCCC5C

background

#F9F6F6

surface

#F2EBEB

border

#CCC6C6

text

#0D0606

muted

#7E7A7A

Preview Lab

Preview with #642F2F

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

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