#643E94#643E94

#643E94 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.1% C 0.137 H 301.5°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#643E94
RGB	rgb(100, 62, 148)
HSL	hsl(267, 41%, 41%)
HSV	hsv(267, 58%, 58%)
CMYK	cmyk(32.4%, 58.1%, 0%, 42%)
CIE-LAB	lab(34.59, 35.02, -41.41)
CIE-LCH	lch(34.59, 54.23, 310.22°)
OKLab	oklab(45.09% 0.0718 -0.1171)
OKLCH	oklch(45.09% 0.137 301.5)
XYZ	xyz(12.3222, 8.2927, 28.9627)
Luminance	0.0829 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E94 #6E943E

analogous

#3E4394 #643E94 #8F3E94

triadic

#643E94 #94643E #3E9464

tetradic

#643E94 #943E43 #6E943E #3E948F

square

#643E94 #943E43 #6E943E #3E948F

split-complementary

#643E94 #948F3E #43943E

monochromatic

#2A1A3E #472C69 #643E94 #8257B8 #A282CB

Accessibility & contrast

On white

7.90

#643E94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#643E94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E94

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E94	#FFFFFF	#000000	##FFFFFF
##643E94	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#195197

Deuteranopia (green-blind)

#285192

Tritanopia (blue-blind)

#5A4F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643e94;
/* rgb */ color: rgb(100, 62, 148);
/* oklch */ color: oklch(45.1% 0.137 301.5);

Tailwind

colors: {
  custom: {
    50: '#9375b4',
    500: '#643e94',
    950: '#000000',
  },
}

SCSS

$custom: #643e94;
$custom-light: #9375b4;
$custom-dark: #000000;

JSON

{
  "hex": "#643e94",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 148
  },
  "hsl": {
    "h": 266.512,
    "s": 40.952,
    "l": 41.176
  },
  "oklch": {
    "l": 0.45088,
    "c": 0.13735,
    "h": 301.5
  },
  "luminance": 0.08293
}

Semantic roles & 50–950 ramp

primary

#643E94

secondary

#9AB579

accent

#D1579B

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643E94

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

Preview Lab → · Contrast checker → · Palette generator →