#642D91#642D91

#642D91 is a dark, vivid violet. Relative luminance 0.066; OKLCH L 42.4% C 0.159 H 305.9°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#642D91
RGB	rgb(100, 45, 145)
HSL	hsl(273, 53%, 37%)
HSV	hsv(273, 69%, 57%)
CMYK	cmyk(31%, 69%, 0%, 43.1%)
CIE-LAB	lab(30.95, 43.51, -45.42)
CIE-LCH	lch(30.95, 62.90, 313.77°)
OKLab	oklab(42.39% 0.0932 -0.1288)
OKLCH	oklch(42.39% 0.159 305.9)
XYZ	xyz(11.3036, 6.6305, 27.4669)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642D91 #5A912D

analogous

#322D91 #642D91 #912D8C

triadic

#642D91 #91642D #2D9164

tetradic

#642D91 #91322D #5A912D #2D8C91

square

#642D91 #91322D #5A912D #2D8C91

split-complementary

#642D91 #8C912D #2D9132

monochromatic

#241034 #441F62 #642D91 #843BC0 #A168D0

Accessibility & contrast

On white

9.03

#642D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#642D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642D91

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642D91	#FFFFFF	#000000	##FFFFFF
##642D91	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004794

Deuteranopia (green-blind)

#0F498F

Tritanopia (blue-blind)

#5C435B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #642d91;
/* rgb */ color: rgb(100, 45, 145);
/* oklch */ color: oklch(42.4% 0.159 305.9);

Tailwind

colors: {
  custom: {
    50: '#946ab2',
    500: '#642d91',
    950: '#000000',
  },
}

SCSS

$custom: #642d91;
$custom-light: #946ab2;
$custom-dark: #000000;

JSON

{
  "hex": "#642d91",
  "rgb": {
    "r": 100,
    "g": 45,
    "b": 145
  },
  "hsl": {
    "h": 273,
    "s": 52.632,
    "l": 37.255
  },
  "oklch": {
    "l": 0.42385,
    "c": 0.15901,
    "h": 305.9
  },
  "luminance": 0.0663
}

Semantic roles & 50–950 ramp

primary

#642D91

secondary

#89B763

accent

#DC4C8D

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0711

muted

#7E7A80

Preview Lab

Preview with #642D91

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

Preview Lab → · Contrast checker → · Palette generator →