#640F5B#640F5B

#640F5B is a dark, vivid purple. Relative luminance 0.038; OKLCH L 35.6% C 0.144 H 333.1°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#640F5B
RGB	rgb(100, 15, 91)
HSL	hsl(306, 74%, 23%)
HSV	hsv(306, 85%, 39%)
CMYK	cmyk(0%, 85%, 9%, 60.8%)
CIE-LAB	lab(23.02, 44.48, -23.69)
CIE-LCH	lch(23.02, 50.39, 331.96°)
OKLab	oklab(35.56% 0.1286 -0.0651)
OKLCH	oklch(35.56% 0.144 333.1)
XYZ	xyz(7.3147, 3.8069, 10.2451)
Luminance	0.0381 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#640F5B #0F6418

analogous

#430F64 #640F5B #640F30

triadic

#640F5B #5B640F #0F5B64

tetradic

#640F5B #64430F #0F6418 #0F3064

square

#640F5B #64430F #0F6418 #0F3064

split-complementary

#640F5B #30640F #0F6443

monochromatic

#1B0418 #2F072B #640F5B #99178B #CE1FBC

Accessibility & contrast

On white

11.92

#640F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#640F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #640F5B

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##640F5B	#FFFFFF	#000000	##FFFFFF
##640F5B	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A2F5D

Deuteranopia (green-blind)

#2E3B59

Tritanopia (blue-blind)

#691935

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #640f5b;
/* rgb */ color: rgb(100, 15, 91);
/* oklch */ color: oklch(35.6% 0.144 333.1);

Tailwind

colors: {
  custom: {
    50: '#935a8a',
    500: '#640f5b',
    950: '#000000',
  },
}

SCSS

$custom: #640f5b;
$custom-light: #935a8a;
$custom-dark: #000000;

JSON

{
  "hex": "#640f5b",
  "rgb": {
    "r": 100,
    "g": 15,
    "b": 91
  },
  "hsl": {
    "h": 306.353,
    "s": 73.913,
    "l": 22.549
  },
  "oklch": {
    "l": 0.35561,
    "c": 0.14412,
    "h": 333.1
  },
  "luminance": 0.03806
}

Semantic roles & 50–950 ramp

primary

#640F5B

secondary

#329D3D

accent

#F14B37

background

#F9F5F8

surface

#F2E9F0

border

#CCC5CB

text

#0D040B

muted

#7E797C

Preview Lab

Preview with #640F5B

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

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