#643EC5#643EC5

#643EC5 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 48.8% C 0.198 H 290.0°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#643EC5
RGB	rgb(100, 62, 197)
HSL	hsl(257, 54%, 51%)
HSV	hsv(257, 69%, 77%)
CMYK	cmyk(49.2%, 68.5%, 0%, 22.7%)
CIE-LAB	lab(38.17, 48.50, -64.79)
CIE-LCH	lch(38.17, 80.94, 306.82°)
OKLab	oklab(48.82% 0.0676 -0.1858)
OKLCH	oklch(48.82% 0.198 290)
XYZ	xyz(17.0533, 10.1851, 53.8799)
Luminance	0.1019 (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

#643EC5 #9FC53E

analogous

#3E5BC5 #643EC5 #A73EC5

triadic

#643EC5 #C5643E #3EC564

tetradic

#643EC5 #C53E5B #9FC53E #3EC5A7

square

#643EC5 #C53E5B #9FC53E #3EC5A7

split-complementary

#643EC5 #C5A73E #5BC53E

monochromatic

#342069 #4C2E98 #643EC5 #8A6DD3 #B09CE1

Accessibility & contrast

On white

6.91

#643EC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#643EC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643EC5

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EC5	#FFFFFF	#000000	##FFFFFF
##643EC5	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC9

Deuteranopia (green-blind)

#0057C2

Tritanopia (blue-blind)

#43607D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643ec5;
/* rgb */ color: rgb(100, 62, 197);
/* oklch */ color: oklch(48.8% 0.198 290.0);

Tailwind

colors: {
  custom: {
    50: '#9976d8',
    500: '#643ec5',
    950: '#000000',
  },
}

SCSS

$custom: #643ec5;
$custom-light: #9976d8;
$custom-dark: #000000;

JSON

{
  "hex": "#643ec5",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 197
  },
  "hsl": {
    "h": 256.889,
    "s": 53.785,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48818,
    "c": 0.19775,
    "h": 290
  },
  "luminance": 0.10186
}

Semantic roles & 50–950 ramp

primary

#643EC5

secondary

#BCCD91

accent

#DD4BB4

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0915

muted

#7E7B83

Preview Lab

Preview with #643EC5

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

Preview Lab → · Contrast checker → · Palette generator →