#641B66#641B66

#641B66 is a dark, vivid purple. Relative luminance 0.045; OKLCH L 37.3% C 0.140 H 326.8°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#641B66
RGB	rgb(100, 27, 102)
HSL	hsl(298, 58%, 25%)
HSV	hsv(298, 74%, 40%)
CMYK	cmyk(2%, 73.5%, 0%, 60%)
CIE-LAB	lab(25.12, 42.31, -27.60)
CIE-LCH	lch(25.12, 50.52, 326.88°)
OKLab	oklab(37.27% 0.117 -0.0765)
OKLCH	oklch(37.27% 0.14 326.8)
XYZ	xyz(8.0456, 4.4530, 13.0036)
Luminance	0.0445 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B66 #1D661B

analogous

#3E1B66 #641B66 #661B42

triadic

#641B66 #66641B #1B6664

tetradic

#641B66 #663E1B #1D661B #1B4266

square

#641B66 #663E1B #1D661B #1B4266

split-complementary

#641B66 #42661B #1B663E

monochromatic

#180618 #350E36 #641B66 #932896 #C335C7

Accessibility & contrast

On white

11.11

#641B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#641B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B66

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B66	#FFFFFF	#000000	##FFFFFF
##641B66	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3668

Deuteranopia (green-blind)

#2D3F64

Tritanopia (blue-blind)

#67263E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #641b66;
/* rgb */ color: rgb(100, 27, 102);
/* oklch */ color: oklch(37.3% 0.140 326.8);

Tailwind

colors: {
  custom: {
    50: '#935f92',
    500: '#641b66',
    950: '#000000',
  },
}

SCSS

$custom: #641b66;
$custom-light: #935f92;
$custom-dark: #000000;

JSON

{
  "hex": "#641b66",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 298.4,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.37273,
    "c": 0.1398,
    "h": 326.8
  },
  "luminance": 0.04453
}

Semantic roles & 50–950 ramp

primary

#641B66

secondary

#449B41

accent

#E1464B

background

#F9F5F9

surface

#F2EAF1

border

#CCC6CB

text

#0D050D

muted

#7E797E

Preview Lab

Preview with #641B66

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

Preview Lab → · Contrast checker → · Palette generator →