#643129#643129

#643129 is a dark, moderate red. Relative luminance 0.051; OKLCH L 37.8% C 0.075 H 30.2°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#643129
RGB	rgb(100, 49, 41)
HSL	hsl(8, 42%, 28%)
HSV	hsv(8, 59%, 39%)
CMYK	cmyk(0%, 51%, 59%, 60.8%)
CIE-LAB	lab(26.92, 22.09, 15.54)
CIE-LCH	lch(26.92, 27.01, 35.14°)
OKLab	oklab(37.84% 0.0651 0.038)
OKLCH	oklch(37.84% 0.075 30.2)
XYZ	xyz(6.7546, 5.0668, 2.7197)
Luminance	0.0507 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643129 #295C64

analogous

#64293E #643129 #644F29

triadic

#643129 #296431 #312964

tetradic

#643129 #3E6429 #295C64 #4F2964

square

#643129 #3E6429 #295C64 #4F2964

split-complementary

#643129 #29644F #293E64

monochromatic

#160B09 #391C17 #643129 #8F463B #B75E50

Accessibility & contrast

On white

10.43

#643129 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#643129 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643129

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643129	#FFFFFF	#000000	##FFFFFF
##643129	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3928

Deuteranopia (green-blind)

#4A4428

Tritanopia (blue-blind)

#6D292F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #643129;
/* rgb */ color: rgb(100, 49, 41);
/* oklch */ color: oklch(37.8% 0.075 30.2);

Tailwind

colors: {
  custom: {
    50: '#946a62',
    500: '#643129',
    950: '#000000',
  },
}

SCSS

$custom: #643129;
$custom-light: #946a62;
$custom-dark: #000000;

JSON

{
  "hex": "#643129",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 41
  },
  "hsl": {
    "h": 8.136,
    "s": 41.844,
    "l": 27.647
  },
  "oklch": {
    "l": 0.37842,
    "c": 0.07537,
    "h": 30.2
  },
  "luminance": 0.05066
}

Semantic roles & 50–950 ramp

primary

#643129

secondary

#528D96

accent

#C1D256

background

#F9F6F5

surface

#F2EBEA

border

#CCC6C6

text

#0E0605

muted

#7E7A79

Preview Lab

Preview with #643129

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

Preview Lab → · Contrast checker → · Palette generator →