#642C9A#642C9A

#642C9A is a dark, vivid violet. Relative luminance 0.068; OKLCH L 43.0% C 0.170 H 303.1°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#642C9A
RGB	rgb(100, 44, 154)
HSL	hsl(271, 56%, 39%)
HSV	hsv(271, 71%, 60%)
CMYK	cmyk(35.1%, 71.4%, 0%, 39.6%)
CIE-LAB	lab(31.45, 46.23, -50.12)
CIE-LCH	lch(31.45, 68.19, 312.68°)
OKLab	oklab(42.95% 0.093 -0.1426)
OKLCH	oklch(42.95% 0.17 303.1)
XYZ	xyz(11.9876, 6.8438, 31.2550)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642C9A #629A2C

analogous

#2D2C9A #642C9A #9A2C99

triadic

#642C9A #9A642C #2C9A64

tetradic

#642C9A #9A2D2C #629A2C #2C999A

square

#642C9A #9A2D2C #629A2C #2C999A

split-complementary

#642C9A #999A2C #2C9A2D

monochromatic

#26113B #451E6A #642C9A #833CC7 #A16CD5

Accessibility & contrast

On white

8.87

#642C9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#642C9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642C9A

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642C9A	#FFFFFF	#000000	##FFFFFF
##642C9A	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499D

Deuteranopia (green-blind)

#004A98

Tritanopia (blue-blind)

#594660

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #642c9a;
/* rgb */ color: rgb(100, 44, 154);
/* oklch */ color: oklch(43.0% 0.170 303.1);

Tailwind

colors: {
  custom: {
    50: '#956ab9',
    500: '#642c9a',
    950: '#000000',
  },
}

SCSS

$custom: #642c9a;
$custom-light: #956ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#642c9a",
  "rgb": {
    "r": 100,
    "g": 44,
    "b": 154
  },
  "hsl": {
    "h": 270.545,
    "s": 55.556,
    "l": 38.824
  },
  "oklch": {
    "l": 0.42953,
    "c": 0.1703,
    "h": 303.1
  },
  "luminance": 0.06844
}

Semantic roles & 50–950 ramp

primary

#642C9A

secondary

#90BC66

accent

#DF4993

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0711

muted

#7E7A80

Preview Lab

Preview with #642C9A

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

Preview Lab → · Contrast checker → · Palette generator →