#640F68#640F68

#640F68 is a dark, vivid purple. Relative luminance 0.041; OKLCH L 36.4% C 0.154 H 326.1°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#640F68
RGB	rgb(100, 15, 104)
HSL	hsl(297, 75%, 23%)
HSV	hsv(297, 86%, 41%)
CMYK	cmyk(3.8%, 85.6%, 0%, 59.2%)
CIE-LAB	lab(23.84, 46.71, -30.94)
CIE-LCH	lch(23.84, 56.03, 326.48°)
OKLab	oklab(36.4% 0.1282 -0.0862)
OKLCH	oklch(36.4% 0.154 326.1)
XYZ	xyz(7.9249, 4.0510, 13.4585)
Luminance	0.0405 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.68

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#640F68 #13680F

analogous

#370F68 #640F68 #680F3F

triadic

#640F68 #68640F #0F6864

tetradic

#640F68 #68370F #13680F #0F3F68

square

#640F68 #68370F #13680F #0F3F68

split-complementary

#640F68 #3F680F #0F6837

monochromatic

#1A041B #310733 #640F68 #97179D #CB1ED3

Accessibility & contrast

On white

11.60

#640F68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#640F68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #640F68

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##640F68	#FFFFFF	#000000	##FFFFFF
##640F68	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326A

Deuteranopia (green-blind)

#263C66

Tritanopia (blue-blind)

#67213D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #640f68;
/* rgb */ color: rgb(100, 15, 104);
/* oklch */ color: oklch(36.4% 0.154 326.1);

Tailwind

colors: {
  custom: {
    50: '#945b93',
    500: '#640f68',
    950: '#000000',
  },
}

SCSS

$custom: #640f68;
$custom-light: #945b93;
$custom-dark: #000000;

JSON

{
  "hex": "#640f68",
  "rgb": {
    "r": 100,
    "g": 15,
    "b": 104
  },
  "hsl": {
    "h": 297.303,
    "s": 74.79,
    "l": 23.333
  },
  "oklch": {
    "l": 0.36404,
    "c": 0.15445,
    "h": 326.1
  },
  "luminance": 0.0405
}

Semantic roles & 50–950 ramp

primary

#640F68

secondary

#37A132

accent

#F1363F

background

#F9F5F9

surface

#F2E9F1

border

#CCC5CB

text

#0D040D

muted

#7E797E

Preview Lab

Preview with #640F68

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

Preview Lab → · Contrast checker → · Palette generator →