#643F98#643F98

#643F98 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.5% C 0.141 H 300.0°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#643F98
RGB	rgb(100, 63, 152)
HSL	hsl(265, 41%, 42%)
HSV	hsv(265, 59%, 60%)
CMYK	cmyk(34.2%, 58.6%, 0%, 40.4%)
CIE-LAB	lab(35.07, 35.50, -43.07)
CIE-LCH	lch(35.07, 55.82, 309.50°)
OKLab	oklab(45.52% 0.0705 -0.122)
OKLCH	oklch(45.52% 0.141 300)
XYZ	xyz(12.6992, 8.5312, 30.6773)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F98 #73983F

analogous

#3F4798 #643F98 #913F98

triadic

#643F98 #98643F #3F9864

tetradic

#643F98 #983F47 #73983F #3F9891

square

#643F98 #983F47 #73983F #3F9891

split-complementary

#643F98 #98913F #47983F

monochromatic

#2B1B41 #482D6D #643F98 #825ABA #A385CC

Accessibility & contrast

On white

7.76

#643F98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#643F98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F98

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F98	#FFFFFF	#000000	##FFFFFF
##643F98	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15529B

Deuteranopia (green-blind)

#245296

Tritanopia (blue-blind)

#595165

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643f98;
/* rgb */ color: rgb(100, 63, 152);
/* oklch */ color: oklch(45.5% 0.141 300.0);

Tailwind

colors: {
  custom: {
    50: '#9375b7',
    500: '#643f98',
    950: '#000000',
  },
}

SCSS

$custom: #643f98;
$custom-light: #9375b7;
$custom-dark: #000000;

JSON

{
  "hex": "#643f98",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 152
  },
  "hsl": {
    "h": 264.944,
    "s": 41.395,
    "l": 42.157
  },
  "oklch": {
    "l": 0.45524,
    "c": 0.14087,
    "h": 300
  },
  "luminance": 0.08531
}

Semantic roles & 50–950 ramp

primary

#643F98

secondary

#9EB77C

accent

#D1579E

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643F98

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

Preview Lab → · Contrast checker → · Palette generator →