#644CAE#644CAE

#644CAE is a mid, vivid violet. Relative luminance 0.109; OKLCH L 49.2% C 0.150 H 291.2°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX#644CAE
RGBrgb(100, 76, 174)
HSLhsl(255, 39%, 49%)
HSVhsv(255, 56%, 68%)
CMYKcmyk(42.5%, 56.3%, 0%, 31.8%)
CIE-LABlab(39.47, 33.95, -49.18)
CIE-LCHlch(39.47, 59.76, 304.62°)
OKLaboklab(49.23% 0.0542 -0.1399)
OKLCHoklch(49.23% 0.15 291.2)
XYZxyz(15.4779, 10.9337, 41.3311)
Luminance0.1093 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644CAE #96AE4C
analogous
#4C65AE #644CAE #954CAE
triadic
#644CAE #AE644C #4CAE64
tetradic
#644CAE #AE4C65 #96AE4C #4CAE95
square
#644CAE #AE4C65 #96AE4C #4CAE95
split-complementary
#644CAE #AE954C #65AE4C
monochromatic
#332759 #4C3983 #644CAE #8875C3 #AC9FD5

Accessibility & contrast

On white

6.59
#644CAE on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.19
#644CAE on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CAE
6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644CAE#FFFFFF#000000##FFFFFF
##644CAE1.006.593.196.59
#FFFFFF6.591.0021.001.00
#0000003.1921.001.0021.00
##FFFFFF6.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#175FB1
Deuteranopia (green-blind)
#1D5BAC
Tritanopia (blue-blind)
#4F6175
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #644cae;
/* rgb */ color: rgb(100, 76, 174);
/* oklch */ color: oklch(49.2% 0.150 291.2);
Tailwind
colors: {
  custom: {
    50: '#957fc7',
    500: '#644cae',
    950: '#000000',
  },
}
SCSS
$custom: #644cae;
$custom-light: #957fc7;
$custom-dark: #000000;
JSON
{
  "hex": "#644cae",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 174
  },
  "hsl": {
    "h": 254.694,
    "s": 39.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.49229,
    "c": 0.15004,
    "h": 291.2
  },
  "luminance": 0.10934
}

Semantic roles & 50–950 ramp

primary
#644CAE
secondary
#B7C294
accent
#CF59B2
background
#F9F7FC
surface
#F2EEF8
border
#CCC9D1
text
#0E0A13
muted
#7E7C82

Preview Lab

Preview with #644CAE

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

Preview Lab → · Contrast checker → · Palette generator →

#644CAE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva