#643BD9#643BD9

#643BD9 is a mid, highly saturated violet. Relative luminance 0.108; OKLCH L 50.2% C 0.224 H 287.2°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#643BD9
RGB	rgb(100, 59, 217)
HSL	hsl(256, 68%, 54%)
HSV	hsv(256, 73%, 85%)
CMYK	cmyk(53.9%, 72.8%, 0%, 14.9%)
CIE-LAB	lab(39.32, 55.64, -74.48)
CIE-LCH	lch(39.32, 92.97, 306.76°)
OKLab	oklab(50.16% 0.0662 -0.2142)
OKLCH	oklch(50.16% 0.224 287.2)
XYZ	xyz(19.3402, 10.8460, 66.7066)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643BD9 #B0D93B

analogous

#3B61D9 #643BD9 #B33BD9

triadic

#643BD9 #D9643B #3BD964

tetradic

#643BD9 #D93B61 #B0D93B #3BD9B3

square

#643BD9 #D93B61 #B0D93B #3BD9B3

split-complementary

#643BD9 #D9B33B #61D93B

monochromatic

#341981 #4923B4 #643BD9 #8D6EE3 #B5A2ED

Accessibility & contrast

On white

6.63

#643BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#643BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643BD9

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BD9	#FFFFFF	#000000	##FFFFFF
##643BD9	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DE

Deuteranopia (green-blind)

#0058D6

Tritanopia (blue-blind)

#336687

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #643bd9;
/* rgb */ color: rgb(100, 59, 217);
/* oklch */ color: oklch(50.2% 0.224 287.2);

Tailwind

colors: {
  custom: {
    50: '#9c75e6',
    500: '#643bd9',
    950: '#000000',
  },
}

SCSS

$custom: #643bd9;
$custom-light: #9c75e6;
$custom-dark: #000000;

JSON

{
  "hex": "#643bd9",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 217
  },
  "hsl": {
    "h": 255.57,
    "s": 67.521,
    "l": 54.118
  },
  "oklch": {
    "l": 0.50157,
    "c": 0.22425,
    "h": 287.2
  },
  "luminance": 0.10847
}

Semantic roles & 50–950 ramp

primary

#643BD9

secondary

#C8DA96

accent

#EA3DBE

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #643BD9

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

Preview Lab → · Contrast checker → · Palette generator →