#643E9E#643E9E

#643E9E is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.8% C 0.150 H 298.5°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#643E9E
RGB	rgb(100, 62, 158)
HSL	hsl(264, 44%, 43%)
HSV	hsv(264, 61%, 62%)
CMYK	cmyk(36.7%, 60.8%, 0%, 38%)
CIE-LAB	lab(35.25, 37.69, -46.41)
CIE-LCH	lch(35.25, 59.79, 309.08°)
OKLab	oklab(45.79% 0.0717 -0.1318)
OKLCH	oklch(45.79% 0.15 298.5)
XYZ	xyz(13.1482, 8.6230, 33.3128)
Luminance	0.0862 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E9E #789E3E

analogous

#3E489E #643E9E #943E9E

triadic

#643E9E #9E643E #3E9E64

tetradic

#643E9E #9E3E48 #789E3E #3E9E94

square

#643E9E #9E3E48 #789E3E #3E9E94

split-complementary

#643E9E #9E943E #489E3E

monochromatic

#2C1C46 #482D72 #643E9E #825BBF #A487D0

Accessibility & contrast

On white

7.71

#643E9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#643E9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E9E

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E9E	#FFFFFF	#000000	##FFFFFF
##643E9E	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A1

Deuteranopia (green-blind)

#1A529C

Tritanopia (blue-blind)

#575268

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643e9e;
/* rgb */ color: rgb(100, 62, 158);
/* oklch */ color: oklch(45.8% 0.150 298.5);

Tailwind

colors: {
  custom: {
    50: '#9475bb',
    500: '#643e9e',
    950: '#000000',
  },
}

SCSS

$custom: #643e9e;
$custom-light: #9475bb;
$custom-dark: #000000;

JSON

{
  "hex": "#643e9e",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 158
  },
  "hsl": {
    "h": 263.75,
    "s": 43.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.45785,
    "c": 0.15001,
    "h": 298.5
  },
  "luminance": 0.08623
}

Semantic roles & 50–950 ramp

primary

#643E9E

secondary

#A2BA7E

accent

#D354A1

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643E9E

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

Preview Lab → · Contrast checker → · Palette generator →