#640D57#640D57

#640D57 is a dark, vivid purple. Relative luminance 0.037; OKLCH L 35.2% C 0.143 H 335.5°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#640D57
RGB	rgb(100, 13, 87)
HSL	hsl(309, 77%, 22%)
HSV	hsv(309, 87%, 39%)
CMYK	cmyk(0%, 87%, 13%, 60.8%)
CIE-LAB	lab(22.61, 44.37, -21.68)
CIE-LCH	lch(22.61, 49.39, 333.96°)
OKLab	oklab(35.19% 0.13 -0.0593)
OKLCH	oklch(35.19% 0.143 335.5)
XYZ	xyz(7.1199, 3.6860, 9.3515)
Luminance	0.0369 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#640D57 #0D641A

analogous

#460D64 #640D57 #640D2B

triadic

#640D57 #57640D #0D5764

tetradic

#640D57 #64460D #0D641A #0D2B64

square

#640D57 #64460D #0D641A #0D2B64

split-complementary

#640D57 #2B640D #0D6446

monochromatic

#1B0418 #2E0628 #640D57 #9A1486 #D01BB5

Accessibility & contrast

On white

12.09

#640D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#640D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #640D57

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##640D57	#FFFFFF	#000000	##FFFFFF
##640D57	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D2E59

Deuteranopia (green-blind)

#2F3A55

Tritanopia (blue-blind)

#691632

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #640d57;
/* rgb */ color: rgb(100, 13, 87);
/* oklch */ color: oklch(35.2% 0.143 335.5);

Tailwind

colors: {
  custom: {
    50: '#935986',
    500: '#640d57',
    950: '#000000',
  },
}

SCSS

$custom: #640d57;
$custom-light: #935986;
$custom-dark: #000000;

JSON

{
  "hex": "#640d57",
  "rgb": {
    "r": 100,
    "g": 13,
    "b": 87
  },
  "hsl": {
    "h": 308.966,
    "s": 76.991,
    "l": 22.157
  },
  "oklch": {
    "l": 0.35187,
    "c": 0.1429,
    "h": 335.5
  },
  "luminance": 0.03685
}

Semantic roles & 50–950 ramp

primary

#640D57

secondary

#2F9E40

accent

#F45134

background

#F9F5F8

surface

#F2E9EF

border

#CCC5CA

text

#0D040B

muted

#7E797C

Preview Lab

Preview with #640D57

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

Preview Lab → · Contrast checker → · Palette generator →