#643391#643391

#643391 is a dark, vivid violet. Relative luminance 0.071; OKLCH L 43.2% C 0.150 H 304.9°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#643391
RGB	rgb(100, 51, 145)
HSL	hsl(271, 48%, 38%)
HSV	hsv(271, 65%, 57%)
CMYK	cmyk(31%, 64.8%, 0%, 43.1%)
CIE-LAB	lab(32.08, 40.40, -43.60)
CIE-LCH	lch(32.08, 59.44, 312.82°)
OKLab	oklab(43.2% 0.086 -0.1235)
OKLCH	oklch(43.2% 0.151 304.9)
XYZ	xyz(11.5491, 7.1214, 27.5487)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643391 #609133

analogous

#353391 #643391 #91338F

triadic

#643391 #916433 #339164

tetradic

#643391 #913533 #609133 #338F91

square

#643391 #913533 #609133 #338F91

split-complementary

#643391 #8F9133 #339135

monochromatic

#261336 #452364 #643391 #8344BD #A171CD

Accessibility & contrast

On white

8.66

#643391 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#643391 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643391

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643391	#FFFFFF	#000000	##FFFFFF
##643391	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A94

Deuteranopia (green-blind)

#1B4C8F

Tritanopia (blue-blind)

#5C475D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643391;
/* rgb */ color: rgb(100, 51, 145);
/* oklch */ color: oklch(43.2% 0.150 304.9);

Tailwind

colors: {
  custom: {
    50: '#946eb2',
    500: '#643391',
    950: '#000000',
  },
}

SCSS

$custom: #643391;
$custom-light: #946eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#643391",
  "rgb": {
    "r": 100,
    "g": 51,
    "b": 145
  },
  "hsl": {
    "h": 271.277,
    "s": 47.959,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43199,
    "c": 0.1505,
    "h": 304.9
  },
  "luminance": 0.07121
}

Semantic roles & 50–950 ramp

primary

#643391

secondary

#8EB56B

accent

#D85091

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0D0711

muted

#7E7A80

Preview Lab

Preview with #643391

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

Preview Lab → · Contrast checker → · Palette generator →