#642E2B#642E2B

#642E2B is a dark, moderate red. Relative luminance 0.048; OKLCH L 37.4% C 0.079 H 24.8°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#642E2B
RGB	rgb(100, 46, 43)
HSL	hsl(3, 40%, 28%)
HSV	hsv(3, 57%, 39%)
CMYK	cmyk(0%, 54%, 57%, 60.8%)
CIE-LAB	lab(26.27, 24.03, 13.37)
CIE-LCH	lch(26.27, 27.50, 29.10°)
OKLab	oklab(37.36% 0.0715 0.0331)
OKLCH	oklch(37.36% 0.079 24.8)
XYZ	xyz(6.6691, 4.8385, 2.8677)
Luminance	0.0484 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642E2B #2B6164

analogous

#642B44 #642E2B #644A2B

triadic

#642E2B #2B642E #2E2B64

tetradic

#642E2B #44642B #2B6164 #4A2B64

square

#642E2B #44642B #2B6164 #4A2B64

split-complementary

#642E2B #2B644A #2B4464

monochromatic

#150A09 #391A19 #642E2B #8F423D #B55954

Accessibility & contrast

On white

10.67

#642E2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#642E2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642E2B

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642E2B	#FFFFFF	#000000	##FFFFFF
##642E2B	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B372A

Deuteranopia (green-blind)

#48422A

Tritanopia (blue-blind)

#6D262E

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #642e2b;
/* rgb */ color: rgb(100, 46, 43);
/* oklch */ color: oklch(37.4% 0.079 24.8);

Tailwind

colors: {
  custom: {
    50: '#946864',
    500: '#642e2b',
    950: '#000000',
  },
}

SCSS

$custom: #642e2b;
$custom-light: #946864;
$custom-dark: #000000;

JSON

{
  "hex": "#642e2b",
  "rgb": {
    "r": 100,
    "g": 46,
    "b": 43
  },
  "hsl": {
    "h": 3.158,
    "s": 39.86,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37357,
    "c": 0.07872,
    "h": 24.8
  },
  "luminance": 0.04838
}

Semantic roles & 50–950 ramp

primary

#642E2B

secondary

#559396

accent

#C9D058

background

#F9F6F5

surface

#F2EBEA

border

#CCC6C6

text

#0E0605

muted

#7E7A79

Preview Lab

Preview with #642E2B

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

Preview Lab → · Contrast checker → · Palette generator →