#642C2B#642C2B

#642C2B is a dark, moderate red. Relative luminance 0.047; OKLCH L 37.0% C 0.081 H 22.9°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#642C2B
RGB	rgb(100, 44, 43)
HSL	hsl(1, 40%, 28%)
HSV	hsv(1, 57%, 39%)
CMYK	cmyk(0%, 56%, 57%, 60.8%)
CIE-LAB	lab(25.82, 25.18, 12.78)
CIE-LCH	lch(25.82, 28.23, 26.90°)
OKLab	oklab(37.02% 0.075 0.0317)
OKLCH	oklch(37.02% 0.081 22.9)
XYZ	xyz(6.5928, 4.6859, 2.8423)
Luminance	0.0469 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642C2B #2B6364

analogous

#642B46 #642C2B #64482B

triadic

#642C2B #2B642C #2C2B64

tetradic

#642C2B #46642B #2B6364 #482B64

square

#642C2B #46642B #2B6364 #482B64

split-complementary

#642C2B #2B6448 #2B4664

monochromatic

#150909 #391919 #642C2B #8F3F3D #B55654

Accessibility & contrast

On white

10.84

#642C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#642C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642C2B

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642C2B	#FFFFFF	#000000	##FFFFFF
##642C2B	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39362B

Deuteranopia (green-blind)

#47422A

Tritanopia (blue-blind)

#6D232C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #642c2b;
/* rgb */ color: rgb(100, 44, 43);
/* oklch */ color: oklch(37.0% 0.081 22.9);

Tailwind

colors: {
  custom: {
    50: '#946764',
    500: '#642c2b',
    950: '#000000',
  },
}

SCSS

$custom: #642c2b;
$custom-light: #946764;
$custom-dark: #000000;

JSON

{
  "hex": "#642c2b",
  "rgb": {
    "r": 100,
    "g": 44,
    "b": 43
  },
  "hsl": {
    "h": 1.053,
    "s": 39.86,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37017,
    "c": 0.08142,
    "h": 22.9
  },
  "luminance": 0.04685
}

Semantic roles & 50–950 ramp

primary

#642C2B

secondary

#559596

accent

#CED058

background

#F9F6F5

surface

#F2EBEA

border

#CCC6C6

text

#0E0605

muted

#7E7A79

Preview Lab

Preview with #642C2B

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

Preview Lab → · Contrast checker → · Palette generator →