#643191#643191

#643191 is a dark, vivid violet. Relative luminance 0.070; OKLCH L 42.9% C 0.153 H 305.2°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#643191
RGB	rgb(100, 49, 145)
HSL	hsl(272, 49%, 38%)
HSV	hsv(272, 66%, 57%)
CMYK	cmyk(31%, 66.2%, 0%, 43.1%)
CIE-LAB	lab(31.69, 41.46, -44.22)
CIE-LCH	lch(31.69, 60.62, 313.15°)
OKLab	oklab(42.92% 0.0885 -0.1253)
OKLCH	oklch(42.92% 0.153 305.2)
XYZ	xyz(11.4636, 6.9504, 27.5202)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643191 #5E9131

analogous

#343191 #643191 #91318E

triadic

#643191 #916431 #319164

tetradic

#643191 #913431 #5E9131 #318E91

square

#643191 #913431 #5E9131 #318E91

split-complementary

#643191 #8E9131 #319134

monochromatic

#251236 #442263 #643191 #8441BF #A16ECE

Accessibility & contrast

On white

8.79

#643191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#643191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643191

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643191	#FFFFFF	#000000	##FFFFFF
##643191	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#174B8F

Tritanopia (blue-blind)

#5C465C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643191;
/* rgb */ color: rgb(100, 49, 145);
/* oklch */ color: oklch(42.9% 0.153 305.2);

Tailwind

colors: {
  custom: {
    50: '#946cb2',
    500: '#643191',
    950: '#000000',
  },
}

SCSS

$custom: #643191;
$custom-light: #946cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#643191",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 145
  },
  "hsl": {
    "h": 271.875,
    "s": 49.485,
    "l": 38.039
  },
  "oklch": {
    "l": 0.42919,
    "c": 0.15341,
    "h": 305.2
  },
  "luminance": 0.0695
}

Semantic roles & 50–950 ramp

primary

#643191

secondary

#8CB668

accent

#D94F90

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0D0711

muted

#7E7A80

Preview Lab

Preview with #643191

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

Preview Lab → · Contrast checker → · Palette generator →