#643DC6#643DC6

#643DC6 is a mid, highly saturated violet. Relative luminance 0.101; OKLCH L 48.8% C 0.200 H 290.0°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#643DC6
RGB	rgb(100, 61, 198)
HSL	hsl(257, 55%, 51%)
HSV	hsv(257, 69%, 78%)
CMYK	cmyk(49.5%, 69.2%, 0%, 22.4%)
CIE-LAB	lab(38.06, 49.31, -65.55)
CIE-LCH	lch(38.06, 82.03, 306.95°)
OKLab	oklab(48.77% 0.0684 -0.1881)
OKLCH	oklch(48.77% 0.2 290)
XYZ	xyz(17.1144, 10.1233, 54.4674)
Luminance	0.1012 (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

#643DC6 #9FC63D

analogous

#3D5AC6 #643DC6 #A83DC6

triadic

#643DC6 #C6643D #3DC664

tetradic

#643DC6 #C63D5A #9FC63D #3DC6A8

square

#643DC6 #C63D5A #9FC63D #3DC6A8

split-complementary

#643DC6 #C6A83D #5AC63D

monochromatic

#341F6A #4C2D99 #643DC6 #8A6CD4 #B09CE2

Accessibility & contrast

On white

6.94

#643DC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#643DC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DC6

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DC6	#FFFFFF	#000000	##FFFFFF
##643DC6	1.00	6.94	3.02	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCA

Deuteranopia (green-blind)

#0056C3

Tritanopia (blue-blind)

#43607D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643dc6;
/* rgb */ color: rgb(100, 61, 198);
/* oklch */ color: oklch(48.8% 0.200 290.0);

Tailwind

colors: {
  custom: {
    50: '#9975d8',
    500: '#643dc6',
    950: '#000000',
  },
}

SCSS

$custom: #643dc6;
$custom-light: #9975d8;
$custom-dark: #000000;

JSON

{
  "hex": "#643dc6",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 198
  },
  "hsl": {
    "h": 257.08,
    "s": 54.582,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48765,
    "c": 0.20011,
    "h": 290
  },
  "luminance": 0.10124
}

Semantic roles & 50–950 ramp

primary

#643DC6

secondary

#BCCE91

accent

#DE4AB4

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0F0915

muted

#7E7B83

Preview Lab

Preview with #643DC6

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

Preview Lab → · Contrast checker → · Palette generator →