#643FD9#643FD9

#643FD9 is a mid, highly saturated violet. Relative luminance 0.113; OKLCH L 50.7% C 0.220 H 286.7°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#643FD9
RGB	rgb(100, 63, 217)
HSL	hsl(254, 67%, 55%)
HSV	hsv(254, 71%, 85%)
CMYK	cmyk(53.9%, 71%, 0%, 14.9%)
CIE-LAB	lab(40.04, 53.63, -73.31)
CIE-LCH	lch(40.04, 90.83, 306.19°)
OKLab	oklab(50.66% 0.0631 -0.2108)
OKLCH	oklch(50.66% 0.22 286.7)
XYZ	xyz(19.5537, 11.2730, 66.7778)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FD9 #B4D93F

analogous

#3F67D9 #643FD9 #B13FD9

triadic

#643FD9 #D9643F #3FD964

tetradic

#643FD9 #D93F67 #B4D93F #3FD9B1

square

#643FD9 #D93F67 #B4D93F #3FD9B1

split-complementary

#643FD9 #D9B13F #67D93F

monochromatic

#331A84 #4724B7 #643FD9 #8D72E3 #B6A5ED

Accessibility & contrast

On white

6.45

#643FD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#643FD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FD9

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FD9	#FFFFFF	#000000	##FFFFFF
##643FD9	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062DE

Deuteranopia (green-blind)

#005AD6

Tritanopia (blue-blind)

#326888

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #643fd9;
/* rgb */ color: rgb(100, 63, 217);
/* oklch */ color: oklch(50.7% 0.220 286.7);

Tailwind

colors: {
  custom: {
    50: '#9b77e6',
    500: '#643fd9',
    950: '#000000',
  },
}

SCSS

$custom: #643fd9;
$custom-light: #9b77e6;
$custom-dark: #000000;

JSON

{
  "hex": "#643fd9",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 217
  },
  "hsl": {
    "h": 254.416,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.50664,
    "c": 0.22005,
    "h": 286.7
  },
  "luminance": 0.11274
}

Semantic roles & 50–950 ramp

primary

#643FD9

secondary

#CBDA9A

accent

#EA3EC1

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #643FD9

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

Preview Lab → · Contrast checker → · Palette generator →