#643C9E#643C9E

#643C9E is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.5% C 0.153 H 299.0°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#643C9E
RGB	rgb(100, 60, 158)
HSL	hsl(264, 45%, 43%)
HSV	hsv(264, 62%, 62%)
CMYK	cmyk(36.7%, 62%, 0%, 38%)
CIE-LAB	lab(34.82, 38.83, -47.09)
CIE-LCH	lch(34.82, 61.04, 309.51°)
OKLab	oklab(45.48% 0.0741 -0.1338)
OKLCH	oklch(45.48% 0.153 299)
XYZ	xyz(13.0414, 8.4095, 33.2772)
Luminance	0.0841 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C9E #769E3C

analogous

#3C459E #643C9E #953C9E

triadic

#643C9E #9E643C #3C9E64

tetradic

#643C9E #9E3C45 #769E3C #3C9E95

square

#643C9E #9E3C45 #769E3C #3C9E95

split-complementary

#643C9E #9E953C #459E3C

monochromatic

#2C1A45 #482B72 #643C9E #8258BF #A384D0

Accessibility & contrast

On white

7.83

#643C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#643C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C9E

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C9E	#FFFFFF	#000000	##FFFFFF
##643C9E	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A1

Deuteranopia (green-blind)

#15519C

Tritanopia (blue-blind)

#575167

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643c9e;
/* rgb */ color: rgb(100, 60, 158);
/* oklch */ color: oklch(45.5% 0.153 299.0);

Tailwind

colors: {
  custom: {
    50: '#9474bb',
    500: '#643c9e',
    950: '#000000',
  },
}

SCSS

$custom: #643c9e;
$custom-light: #9474bb;
$custom-dark: #000000;

JSON

{
  "hex": "#643c9e",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 158
  },
  "hsl": {
    "h": 264.49,
    "s": 44.954,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45475,
    "c": 0.15297,
    "h": 299
  },
  "luminance": 0.0841
}

Semantic roles & 50–950 ramp

primary

#643C9E

secondary

#A1BA7B

accent

#D553A0

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643C9E

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

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