#643DC7#643DC7

#643DC7 is a mid, highly saturated violet. Relative luminance 0.102; OKLCH L 48.9% C 0.201 H 289.8°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#643DC7
RGB	rgb(100, 61, 199)
HSL	hsl(257, 55%, 51%)
HSV	hsv(257, 69%, 78%)
CMYK	cmyk(49.7%, 69.3%, 0%, 22%)
CIE-LAB	lab(38.15, 49.59, -66.00)
CIE-LCH	lch(38.15, 82.56, 306.92°)
OKLab	oklab(48.85% 0.0682 -0.1894)
OKLCH	oklch(48.85% 0.201 289.8)
XYZ	xyz(17.2301, 10.1696, 55.0768)
Luminance	0.1017 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DC7 #A0C73D

analogous

#3D5BC7 #643DC7 #A93DC7

triadic

#643DC7 #C7643D #3DC764

tetradic

#643DC7 #C73D5B #A0C73D #3DC7A9

square

#643DC7 #C73D5B #A0C73D #3DC7A9

split-complementary

#643DC7 #C7A93D #5BC73D

monochromatic

#341F6B #4C2D9A #643DC7 #8A6CD5 #B09CE2

Accessibility & contrast

On white

6.92

#643DC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#643DC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DC7

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DC7	#FFFFFF	#000000	##FFFFFF
##643DC7	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCB

Deuteranopia (green-blind)

#0056C4

Tritanopia (blue-blind)

#42607D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643dc7;
/* rgb */ color: rgb(100, 61, 199);
/* oklch */ color: oklch(48.9% 0.201 289.8);

Tailwind

colors: {
  custom: {
    50: '#9976d9',
    500: '#643dc7',
    950: '#000000',
  },
}

SCSS

$custom: #643dc7;
$custom-light: #9976d9;
$custom-dark: #000000;

JSON

{
  "hex": "#643dc7",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 199
  },
  "hsl": {
    "h": 256.957,
    "s": 55.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.4885,
    "c": 0.20129,
    "h": 289.8
  },
  "luminance": 0.1017
}

Semantic roles & 50–950 ramp

primary

#643DC7

secondary

#BDCE91

accent

#DF49B4

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643DC7

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

Preview Lab → · Contrast checker → · Palette generator →