#643FD1#643FD1

#643FD1 is a mid, highly saturated violet. Relative luminance 0.109; OKLCH L 50.0% C 0.211 H 287.9°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX#643FD1
RGBrgb(100, 63, 209)
HSLhsl(255, 61%, 53%)
HSVhsv(255, 70%, 82%)
CMYKcmyk(52.2%, 69.9%, 0%, 18%)
CIE-LABlab(39.36, 51.37, -69.82)
CIE-LCHlch(39.36, 86.68, 306.34°)
OKLaboklab(49.97% 0.0646 -0.2006)
OKLCHoklch(49.97% 0.211 287.9)
XYZxyz(18.5383, 10.8669, 61.4299)
Luminance0.1087 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#643FD1 #ACD13F
analogous
#3F63D1 #643FD1 #AD3FD1
triadic
#643FD1 #D1643F #3FD164
tetradic
#643FD1 #D13F63 #ACD13F #3FD1AD
square
#643FD1 #D13F63 #ACD13F #3FD1AD
split-complementary
#643FD1 #D1AD3F #63D13F
monochromatic
#341D79 #4A29AA #643FD1 #8C70DD #B4A2E9

Accessibility & contrast

On white

6.62
#643FD1 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.17
#643FD1 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FD1
6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##643FD1#FFFFFF#000000##FFFFFF
##643FD11.006.623.176.62
#FFFFFF6.621.0021.001.00
#0000003.1721.001.0021.00
##FFFFFF6.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0060D5
Deuteranopia (green-blind)
#0059CE
Tritanopia (blue-blind)
#3A6583
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #643fd1;
/* rgb */ color: rgb(100, 63, 209);
/* oklch */ color: oklch(50.0% 0.211 287.9);
Tailwind
colors: {
  custom: {
    50: '#9a77e0',
    500: '#643fd1',
    950: '#000000',
  },
}
SCSS
$custom: #643fd1;
$custom-light: #9a77e0;
$custom-dark: #000000;
JSON
{
  "hex": "#643fd1",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 209
  },
  "hsl": {
    "h": 255.205,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.4997,
    "c": 0.21074,
    "h": 287.9
  },
  "luminance": 0.10868
}

Semantic roles & 50–950 ramp

primary
#643FD1
secondary
#C5D597
accent
#E443BC
background
#FAF7FD
surface
#F4EDFB
border
#CEC8D4
text
#0F0915
muted
#7F7B83

Preview Lab

Preview with #643FD1

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

Preview Lab → · Contrast checker → · Palette generator →

#643FD1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva