#643C95#643C95

#643C95 is a dark, vivid violet. Relative luminance 0.081; OKLCH L 44.8% C 0.142 H 301.7°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#643C95
RGB	rgb(100, 60, 149)
HSL	hsl(267, 43%, 41%)
HSV	hsv(267, 60%, 58%)
CMYK	cmyk(32.9%, 59.7%, 0%, 41.6%)
CIE-LAB	lab(34.21, 36.44, -42.62)
CIE-LCH	lch(34.21, 56.07, 310.53°)
OKLab	oklab(44.84% 0.0744 -0.1206)
OKLCH	oklch(44.84% 0.142 301.7)
XYZ	xyz(12.2949, 8.1109, 29.3458)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C95 #6D953C

analogous

#3C4095 #643C95 #903C95

triadic

#643C95 #95643C #3C9564

tetradic

#643C95 #953C40 #6D953C #3C9590

square

#643C95 #953C40 #6D953C #3C9590

split-complementary

#643C95 #95903C #40953C

monochromatic

#29193E #472A69 #643C95 #8254BA #A280CC

Accessibility & contrast

On white

8.01

#643C95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#643C95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C95

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C95	#FFFFFF	#000000	##FFFFFF
##643C95	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#115098

Deuteranopia (green-blind)

#235093

Tritanopia (blue-blind)

#5A4E62

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #643c95;
/* rgb */ color: rgb(100, 60, 149);
/* oklch */ color: oklch(44.8% 0.142 301.7);

Tailwind

colors: {
  custom: {
    50: '#9373b5',
    500: '#643c95',
    950: '#000000',
  },
}

SCSS

$custom: #643c95;
$custom-light: #9373b5;
$custom-dark: #000000;

JSON

{
  "hex": "#643c95",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 149
  },
  "hsl": {
    "h": 266.966,
    "s": 42.584,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44836,
    "c": 0.14174,
    "h": 301.7
  },
  "luminance": 0.08111
}

Semantic roles & 50–950 ramp

primary

#643C95

secondary

#9AB677

accent

#D2559A

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643C95

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

Preview Lab → · Contrast checker → · Palette generator →