#643F4F#643F4F

#643F4F is a dark, muted pink. Relative luminance 0.068; OKLCH L 41.6% C 0.056 H 352.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#643F4F
RGB	rgb(100, 63, 79)
HSL	hsl(334, 23%, 32%)
HSV	hsv(334, 37%, 39%)
CMYK	cmyk(0%, 37%, 21%, 60.8%)
CIE-LAB	lab(31.42, 18.73, -2.95)
CIE-LCH	lch(31.42, 18.96, 351.06°)
OKLab	oklab(41.61% 0.0559 -0.0076)
OKLCH	oklch(41.61% 0.056 352.3)
XYZ	xyz(8.4444, 6.8293, 8.2690)
Luminance	0.0683 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F4F #3F6454

analogous

#643F62 #643F4F #64423F

triadic

#643F4F #4F643F #3F4F64

tetradic

#643F4F #62643F #3F6454 #423F64

square

#643F4F #62643F #3F6454 #423F64

split-complementary

#643F4F #3F6442 #3F6264

monochromatic

#191014 #3E2731 #643F4F #8A576D #A8758B

Accessibility & contrast

On white

8.88

#643F4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#643F4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F4F

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F4F	#FFFFFF	#000000	##FFFFFF
##643F4F	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434650

Deuteranopia (green-blind)

#4C4C4E

Tritanopia (blue-blind)

#693E45

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643f4f;
/* rgb */ color: rgb(100, 63, 79);
/* oklch */ color: oklch(41.6% 0.056 352.3);

Tailwind

colors: {
  custom: {
    50: '#917480',
    500: '#643f4f',
    950: '#000000',
  },
}

SCSS

$custom: #643f4f;
$custom-light: #917480;
$custom-dark: #000000;

JSON

{
  "hex": "#643f4f",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 79
  },
  "hsl": {
    "h": 334.054,
    "s": 22.699,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41605,
    "c": 0.05644,
    "h": 352.3
  },
  "luminance": 0.06829
}

Semantic roles & 50–950 ramp

primary

#643F4F

secondary

#6B9482

accent

#BF9A69

background

#F9F7F7

surface

#F1EDEE

border

#CBC8C9

text

#0D080A

muted

#7E7B7C

Preview Lab

Preview with #643F4F

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

Preview Lab → · Contrast checker → · Palette generator →