#643F94#643F94

#643F94 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.3% C 0.136 H 301.2°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#643F94
RGB	rgb(100, 63, 148)
HSL	hsl(266, 40%, 41%)
HSV	hsv(266, 57%, 58%)
CMYK	cmyk(32.4%, 57.4%, 0%, 42%)
CIE-LAB	lab(34.81, 34.44, -41.05)
CIE-LCH	lch(34.81, 53.58, 309.99°)
OKLab	oklab(45.25% 0.0704 -0.1161)
OKLCH	oklch(45.25% 0.136 301.2)
XYZ	xyz(12.3771, 8.4024, 28.9810)
Luminance	0.0840 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F94 #6F943F

analogous

#3F4594 #643F94 #8F3F94

triadic

#643F94 #94643F #3F9464

tetradic

#643F94 #943F45 #6F943F #3F948F

square

#643F94 #943F45 #6F943F #3F948F

split-complementary

#643F94 #948F3F #45943F

monochromatic

#2A1A3E #472D69 #643F94 #8258B8 #A283CA

Accessibility & contrast

On white

7.83

#643F94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#643F94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F94

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F94	#FFFFFF	#000000	##FFFFFF
##643F94	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B5197

Deuteranopia (green-blind)

#295192

Tritanopia (blue-blind)

#5A5063

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643f94;
/* rgb */ color: rgb(100, 63, 148);
/* oklch */ color: oklch(45.3% 0.136 301.2);

Tailwind

colors: {
  custom: {
    50: '#9375b4',
    500: '#643f94',
    950: '#000000',
  },
}

SCSS

$custom: #643f94;
$custom-light: #9375b4;
$custom-dark: #000000;

JSON

{
  "hex": "#643f94",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 148
  },
  "hsl": {
    "h": 266.118,
    "s": 40.284,
    "l": 41.373
  },
  "oklch": {
    "l": 0.45251,
    "c": 0.13575,
    "h": 301.2
  },
  "luminance": 0.08402
}

Semantic roles & 50–950 ramp

primary

#643F94

secondary

#9BB57A

accent

#D0589C

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643F94

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

Preview Lab → · Contrast checker → · Palette generator →