#640F66#640F66

#640F66 is a dark, vivid purple. Relative luminance 0.040; OKLCH L 36.3% C 0.153 H 327.1°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#640F66
RGB	rgb(100, 15, 102)
HSL	hsl(299, 74%, 23%)
HSV	hsv(299, 85%, 40%)
CMYK	cmyk(2%, 85.3%, 0%, 60%)
CIE-LAB	lab(23.71, 46.36, -29.84)
CIE-LCH	lch(23.71, 55.13, 327.23°)
OKLab	oklab(36.27% 0.1283 -0.083)
OKLCH	oklch(36.27% 0.153 327.1)
XYZ	xyz(7.8245, 4.0109, 12.9299)
Luminance	0.0401 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#640F66 #11660F

analogous

#390F66 #640F66 #660F3C

triadic

#640F66 #66640F #0F6664

tetradic

#640F66 #66390F #11660F #0F3C66

square

#640F66 #66390F #11660F #0F3C66

split-complementary

#640F66 #3C660F #0F6639

monochromatic

#1A041B #300731 #640F66 #98179B #CD1FD1

Accessibility & contrast

On white

11.65

#640F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#640F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #640F66

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##640F66	#FFFFFF	#000000	##FFFFFF
##640F66	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003268

Deuteranopia (green-blind)

#273C64

Tritanopia (blue-blind)

#671F3B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #640f66;
/* rgb */ color: rgb(100, 15, 102);
/* oklch */ color: oklch(36.3% 0.153 327.1);

Tailwind

colors: {
  custom: {
    50: '#935a92',
    500: '#640f66',
    950: '#000000',
  },
}

SCSS

$custom: #640f66;
$custom-light: #935a92;
$custom-dark: #000000;

JSON

{
  "hex": "#640f66",
  "rgb": {
    "r": 100,
    "g": 15,
    "b": 102
  },
  "hsl": {
    "h": 298.621,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.36268,
    "c": 0.15282,
    "h": 327.1
  },
  "luminance": 0.0401
}

Semantic roles & 50–950 ramp

primary

#640F66

secondary

#359F32

accent

#F1373B

background

#F9F5F9

surface

#F2E9F1

border

#CCC5CB

text

#0D040D

muted

#7E797E

Preview Lab

Preview with #640F66

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

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