#643C9D#643C9D

#643C9D is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.4% C 0.152 H 299.3°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#643C9D
RGB	rgb(100, 60, 157)
HSL	hsl(265, 45%, 43%)
HSV	hsv(265, 62%, 62%)
CMYK	cmyk(36.3%, 61.8%, 0%, 38.4%)
CIE-LAB	lab(34.75, 38.56, -46.60)
CIE-LCH	lch(34.75, 60.49, 309.61°)
OKLab	oklab(45.4% 0.0742 -0.1323)
OKLCH	oklch(45.4% 0.152 299.3)
XYZ	xyz(12.9557, 8.3752, 32.8258)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C9D #759D3C

analogous

#3C459D #643C9D #943C9D

triadic

#643C9D #9D643C #3C9D64

tetradic

#643C9D #9D3C45 #759D3C #3C9D94

square

#643C9D #9D3C45 #759D3C #3C9D94

split-complementary

#643C9D #9D943C #459D3C

monochromatic

#2C1A44 #482B71 #643C9D #8257BF #A384D0

Accessibility & contrast

On white

7.85

#643C9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#643C9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C9D

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C9D	#FFFFFF	#000000	##FFFFFF
##643C9D	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A0

Deuteranopia (green-blind)

#17519B

Tritanopia (blue-blind)

#575167

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643c9d;
/* rgb */ color: rgb(100, 60, 157);
/* oklch */ color: oklch(45.4% 0.152 299.3);

Tailwind

colors: {
  custom: {
    50: '#9474bb',
    500: '#643c9d',
    950: '#000000',
  },
}

SCSS

$custom: #643c9d;
$custom-light: #9474bb;
$custom-dark: #000000;

JSON

{
  "hex": "#643c9d",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 157
  },
  "hsl": {
    "h": 264.742,
    "s": 44.7,
    "l": 42.549
  },
  "oklch": {
    "l": 0.45402,
    "c": 0.15173,
    "h": 299.3
  },
  "luminance": 0.08375
}

Semantic roles & 50–950 ramp

primary

#643C9D

secondary

#A0BA7B

accent

#D4539F

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643C9D

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

Preview Lab → · Contrast checker → · Palette generator →