#643136#643136

#643136 is a dark, moderate red. Relative luminance 0.052; OKLCH L 38.2% C 0.073 H 15.0°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#643136
RGB	rgb(100, 49, 54)
HSL	hsl(354, 34%, 29%)
HSV	hsv(354, 51%, 39%)
CMYK	cmyk(0%, 51%, 46%, 60.8%)
CIE-LAB	lab(27.22, 23.48, 7.39)
CIE-LCH	lch(27.22, 24.62, 17.46°)
OKLab	oklab(38.17% 0.071 0.019)
OKLCH	oklch(38.17% 0.073 15)
XYZ	xyz(7.0201, 5.1730, 4.1181)
Luminance	0.0517 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643136 #31645F

analogous

#643150 #643136 #644631

triadic

#643136 #366431 #313664

tetradic

#643136 #506431 #31645F #463164

square

#643136 #506431 #31645F #463164

split-complementary

#643136 #316446 #315064

monochromatic

#150A0B #3B1D20 #643136 #8D454C #B15F67

Accessibility & contrast

On white

10.32

#643136 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#643136 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643136

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643136	#FFFFFF	#000000	##FFFFFF
##643136	1.00	10.32	2.03	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3A36

Deuteranopia (green-blind)

#484435

Tritanopia (blue-blind)

#6C2B33

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #643136;
/* rgb */ color: rgb(100, 49, 54);
/* oklch */ color: oklch(38.2% 0.073 15.0);

Tailwind

colors: {
  custom: {
    50: '#936a6c',
    500: '#643136',
    950: '#000000',
  },
}

SCSS

$custom: #643136;
$custom-light: #936a6c;
$custom-dark: #000000;

JSON

{
  "hex": "#643136",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 54
  },
  "hsl": {
    "h": 354.118,
    "s": 34.228,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38165,
    "c": 0.07348,
    "h": 15
  },
  "luminance": 0.05172
}

Semantic roles & 50–950 ramp

primary

#643136

secondary

#5C9590

accent

#CAC05D

background

#F9F6F6

surface

#F2EBEB

border

#CCC6C6

text

#0D0607

muted

#7E7A7A

Preview Lab

Preview with #643136

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

Preview Lab → · Contrast checker → · Palette generator →