#642DA4#642DA4

#642DA4 is a dark, vivid violet. Relative luminance 0.073; OKLCH L 43.9% C 0.180 H 300.0°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#642DA4
RGB	rgb(100, 45, 164)
HSL	hsl(268, 57%, 41%)
HSV	hsv(268, 73%, 64%)
CMYK	cmyk(39%, 72.6%, 0%, 35.7%)
CIE-LAB	lab(32.41, 48.26, -54.63)
CIE-LCH	lch(32.41, 72.90, 311.46°)
OKLab	oklab(43.88% 0.0902 -0.1559)
OKLCH	oklch(43.88% 0.18 300)
XYZ	xyz(12.8931, 7.2663, 35.8380)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642DA4 #6DA42D

analogous

#2D31A4 #642DA4 #9F2DA4

triadic

#642DA4 #A4642D #2DA464

tetradic

#642DA4 #A42D31 #6DA42D #2DA49F

square

#642DA4 #A42D31 #6DA42D #2DA49F

split-complementary

#642DA4 #A49F2D #31A42D

monochromatic

#291344 #472074 #642DA4 #8243CB #A273D9

Accessibility & contrast

On white

8.56

#642DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#642DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642DA4

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642DA4	#FFFFFF	#000000	##FFFFFF
##642DA4	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA7

Deuteranopia (green-blind)

#004BA2

Tritanopia (blue-blind)

#554A66

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #642da4;
/* rgb */ color: rgb(100, 45, 164);
/* oklch */ color: oklch(43.9% 0.180 300.0);

Tailwind

colors: {
  custom: {
    50: '#966bc0',
    500: '#642da4',
    950: '#000000',
  },
}

SCSS

$custom: #642da4;
$custom-light: #966bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#642da4",
  "rgb": {
    "r": 100,
    "g": 45,
    "b": 164
  },
  "hsl": {
    "h": 267.731,
    "s": 56.938,
    "l": 40.98
  },
  "oklch": {
    "l": 0.43879,
    "c": 0.18011,
    "h": 300
  },
  "luminance": 0.07266
}

Semantic roles & 50–950 ramp

primary

#642DA4

secondary

#9AC06D

accent

#E0489A

background

#F9F6FB

surface

#F2EBF7

border

#CCC6D0

text

#0E0712

muted

#7E7A81

Preview Lab

Preview with #642DA4

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

Preview Lab → · Contrast checker → · Palette generator →