#642FA9#642FA9

#642FA9 is a dark, vivid violet. Relative luminance 0.076; OKLCH L 44.5% C 0.183 H 298.4°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#642FA9
RGB	rgb(100, 47, 169)
HSL	hsl(266, 56%, 42%)
HSV	hsv(266, 72%, 66%)
CMYK	cmyk(40.8%, 72.2%, 0%, 33.7%)
CIE-LAB	lab(33.15, 48.58, -56.43)
CIE-LCH	lch(33.15, 74.46, 310.73°)
OKLab	oklab(44.53% 0.0872 -0.1612)
OKLCH	oklch(44.53% 0.183 298.4)
XYZ	xyz(13.4316, 7.6067, 38.2890)
Luminance	0.0761 (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

#642FA9 #74A92F

analogous

#2F37A9 #642FA9 #A12FA9

triadic

#642FA9 #A9642F #2FA964

tetradic

#642FA9 #A92F37 #74A92F #2FA9A1

square

#642FA9 #A92F37 #74A92F #2FA9A1

split-complementary

#642FA9 #A9A12F #37A92F

monochromatic

#2B1449 #482279 #642FA9 #8249CC #A379DA

Accessibility & contrast

On white

8.33

#642FA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#642FA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642FA9

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642FA9	#FFFFFF	#000000	##FFFFFF
##642FA9	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAD

Deuteranopia (green-blind)

#004DA7

Tritanopia (blue-blind)

#534D69

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #642fa9;
/* rgb */ color: rgb(100, 47, 169);
/* oklch */ color: oklch(44.5% 0.183 298.4);

Tailwind

colors: {
  custom: {
    50: '#966cc3',
    500: '#642fa9',
    950: '#000000',
  },
}

SCSS

$custom: #642fa9;
$custom-light: #966cc3;
$custom-dark: #000000;

JSON

{
  "hex": "#642fa9",
  "rgb": {
    "r": 100,
    "g": 47,
    "b": 169
  },
  "hsl": {
    "h": 266.066,
    "s": 56.481,
    "l": 42.353
  },
  "oklch": {
    "l": 0.44533,
    "c": 0.18328,
    "h": 298.4
  },
  "luminance": 0.07607
}

Semantic roles & 50–950 ramp

primary

#642FA9

secondary

#9FC272

accent

#E0489E

background

#F9F6FC

surface

#F2ECF8

border

#CCC7D1

text

#0E0713

muted

#7E7A82

Preview Lab

Preview with #642FA9

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

Preview Lab → · Contrast checker → · Palette generator →