#643EB1#643EB1

#643EB1 is a mid, vivid violet. Relative luminance 0.093; OKLCH L 47.2% C 0.174 H 293.9°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#643EB1
RGB	rgb(100, 62, 177)
HSL	hsl(260, 48%, 47%)
HSV	hsv(260, 65%, 69%)
CMYK	cmyk(43.5%, 65%, 0%, 30.6%)
CIE-LAB	lab(36.61, 42.91, -55.57)
CIE-LCH	lch(36.61, 70.21, 307.67°)
OKLab	oklab(47.21% 0.0704 -0.1587)
OKLCH	oklch(47.21% 0.174 293.9)
XYZ	xyz(14.9118, 9.3285, 42.6014)
Luminance	0.0933 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EB1 #8BB13E

analogous

#3E52B1 #643EB1 #9E3EB1

triadic

#643EB1 #B1643E #3EB164

tetradic

#643EB1 #B13E52 #8BB13E #3EB19E

square

#643EB1 #B13E52 #8BB13E #3EB19E

split-complementary

#643EB1 #B19E3E #52B13E

monochromatic

#311E56 #4A2E84 #643EB1 #8564C9 #A991D8

Accessibility & contrast

On white

7.33

#643EB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#643EB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EB1

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EB1	#FFFFFF	#000000	##FFFFFF
##643EB1	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B5

Deuteranopia (green-blind)

#0054AF

Tritanopia (blue-blind)

#4F5972

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643eb1;
/* rgb */ color: rgb(100, 62, 177);
/* oklch */ color: oklch(47.2% 0.174 293.9);

Tailwind

colors: {
  custom: {
    50: '#9675c9',
    500: '#643eb1',
    950: '#000000',
  },
}

SCSS

$custom: #643eb1;
$custom-light: #9675c9;
$custom-dark: #000000;

JSON

{
  "hex": "#643eb1",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 177
  },
  "hsl": {
    "h": 259.826,
    "s": 48.117,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47206,
    "c": 0.17363,
    "h": 293.9
  },
  "luminance": 0.09329
}

Semantic roles & 50–950 ramp

primary

#643EB1

secondary

#B0C487

accent

#D850AB

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643EB1

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

Preview Lab → · Contrast checker → · Palette generator →