#643DD9#643DD9

#643DD9 is a mid, highly saturated violet. Relative luminance 0.111; OKLCH L 50.4% C 0.222 H 286.9°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX#643DD9
RGBrgb(100, 61, 217)
HSLhsl(255, 67%, 55%)
HSVhsv(255, 72%, 85%)
CMYKcmyk(53.9%, 71.9%, 0%, 14.9%)
CIE-LABlab(39.67, 54.64, -73.90)
CIE-LCHlch(39.67, 91.91, 306.48°)
OKLaboklab(50.41% 0.0647 -0.2126)
OKLCHoklch(50.41% 0.222 286.9)
XYZxyz(19.4449, 11.0555, 66.7415)
Luminance0.1106 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#643DD9 #B2D93D
analogous
#3D64D9 #643DD9 #B23DD9
triadic
#643DD9 #D9643D #3DD964
tetradic
#643DD9 #D93D64 #B2D93D #3DD9B2
square
#643DD9 #D93D64 #B2D93D #3DD9B2
split-complementary
#643DD9 #D9B23D #64D93D
monochromatic
#341982 #4824B5 #643DD9 #8D70E3 #B6A3ED

Accessibility & contrast

On white

6.54
#643DD9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.21
#643DD9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DD9
6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##643DD9#FFFFFF#000000##FFFFFF
##643DD91.006.543.216.54
#FFFFFF6.541.0021.001.00
#0000003.2121.001.0021.00
##FFFFFF6.541.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0061DE
Deuteranopia (green-blind)
#0059D6
Tritanopia (blue-blind)
#326787
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #643dd9;
/* rgb */ color: rgb(100, 61, 217);
/* oklch */ color: oklch(50.4% 0.222 286.9);
Tailwind
colors: {
  custom: {
    50: '#9b76e6',
    500: '#643dd9',
    950: '#000000',
  },
}
SCSS
$custom: #643dd9;
$custom-light: #9b76e6;
$custom-dark: #000000;
JSON
{
  "hex": "#643dd9",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 217
  },
  "hsl": {
    "h": 255,
    "s": 67.241,
    "l": 54.51
  },
  "oklch": {
    "l": 0.50407,
    "c": 0.22218,
    "h": 286.9
  },
  "luminance": 0.11057
}

Semantic roles & 50–950 ramp

primary
#643DD9
secondary
#C9DA98
accent
#EA3EBF
background
#FAF7FE
surface
#F4EDFC
border
#CEC8D5
text
#0F0916
muted
#7F7B84

Preview Lab

Preview with #643DD9

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

Preview Lab → · Contrast checker → · Palette generator →

#643DD9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva