#643C9C#643C9C

#643C9C is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.3% C 0.150 H 299.6°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#643C9C
RGB	rgb(100, 60, 156)
HSL	hsl(265, 44%, 42%)
HSV	hsv(265, 62%, 61%)
CMYK	cmyk(35.9%, 61.5%, 0%, 38.8%)
CIE-LAB	lab(34.68, 38.29, -46.11)
CIE-LCH	lch(34.68, 59.94, 309.71°)
OKLab	oklab(45.33% 0.0742 -0.1309)
OKLCH	oklch(45.33% 0.15 299.6)
XYZ	xyz(12.8707, 8.3412, 32.3780)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C9C #749C3C

analogous

#3C449C #643C9C #943C9C

triadic

#643C9C #9C643C #3C9C64

tetradic

#643C9C #9C3C44 #749C3C #3C9C94

square

#643C9C #9C3C44 #749C3C #3C9C94

split-complementary

#643C9C #9C943C #449C3C

monochromatic

#2B1A44 #482B70 #643C9C #8257BE #A383CF

Accessibility & contrast

On white

7.87

#643C9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#643C9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C9C

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C9C	#FFFFFF	#000000	##FFFFFF
##643C9C	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00519F

Deuteranopia (green-blind)

#19519A

Tritanopia (blue-blind)

#585066

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643c9c;
/* rgb */ color: rgb(100, 60, 156);
/* oklch */ color: oklch(45.3% 0.150 299.6);

Tailwind

colors: {
  custom: {
    50: '#9474ba',
    500: '#643c9c',
    950: '#000000',
  },
}

SCSS

$custom: #643c9c;
$custom-light: #9474ba;
$custom-dark: #000000;

JSON

{
  "hex": "#643c9c",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 156
  },
  "hsl": {
    "h": 265,
    "s": 44.444,
    "l": 42.353
  },
  "oklch": {
    "l": 0.4533,
    "c": 0.15049,
    "h": 299.6
  },
  "luminance": 0.08341
}

Semantic roles & 50–950 ramp

primary

#643C9C

secondary

#9FB97A

accent

#D4549F

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643C9C

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

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