#642C9B#642C9B

#642C9B is a dark, vivid violet. Relative luminance 0.069; OKLCH L 43.0% C 0.171 H 302.8°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#642C9B
RGB	rgb(100, 44, 155)
HSL	hsl(270, 56%, 39%)
HSV	hsv(270, 72%, 61%)
CMYK	cmyk(35.5%, 71.6%, 0%, 39.2%)
CIE-LAB	lab(31.53, 46.48, -50.61)
CIE-LCH	lch(31.53, 68.71, 312.56°)
OKLab	oklab(43.03% 0.0929 -0.1441)
OKLCH	oklch(43.03% 0.171 302.8)
XYZ	xyz(12.0712, 6.8772, 31.6955)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642C9B #639B2C

analogous

#2C2C9B #642C9B #9B2C9B

triadic

#642C9B #9B642C #2C9B64

tetradic

#642C9B #9B2C2C #639B2C #2C9B9B

square

#642C9B #9B2C2C #639B2C #2C9B9B

split-complementary

#642C9B #9B9B2C #2C9B2C

monochromatic

#26113C #451E6B #642C9B #833CC8 #A16CD5

Accessibility & contrast

On white

8.84

#642C9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#642C9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642C9B

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642C9B	#FFFFFF	#000000	##FFFFFF
##642C9B	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499E

Deuteranopia (green-blind)

#004A99

Tritanopia (blue-blind)

#594660

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #642c9b;
/* rgb */ color: rgb(100, 44, 155);
/* oklch */ color: oklch(43.0% 0.171 302.8);

Tailwind

colors: {
  custom: {
    50: '#956ab9',
    500: '#642c9b',
    950: '#000000',
  },
}

SCSS

$custom: #642c9b;
$custom-light: #956ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#642c9b",
  "rgb": {
    "r": 100,
    "g": 44,
    "b": 155
  },
  "hsl": {
    "h": 270.27,
    "s": 55.779,
    "l": 39.02
  },
  "oklch": {
    "l": 0.43032,
    "c": 0.17141,
    "h": 302.8
  },
  "luminance": 0.06877
}

Semantic roles & 50–950 ramp

primary

#642C9B

secondary

#91BC67

accent

#DF4993

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0712

muted

#7E7A81

Preview Lab

Preview with #642C9B

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

Preview Lab → · Contrast checker → · Palette generator →