#644CDB#644CDB

#644CDB is a mid, highly saturated violet. Relative luminance 0.130; OKLCH L 52.7% C 0.208 H 284.4°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX#644CDB
RGBrgb(100, 76, 219)
HSLhsl(250, 67%, 58%)
HSVhsv(250, 65%, 86%)
CMYKcmyk(54.3%, 65.3%, 0%, 14.1%)
CIE-LABlab(42.75, 47.21, -70.02)
CIE-LCHlch(42.75, 84.45, 303.99°)
OKLaboklab(52.66% 0.0516 -0.2012)
OKLCHoklch(52.66% 0.208 284.4)
XYZxyz(20.6223, 12.9915, 68.4251)
Luminance0.1299 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644CDB #C3DB4C
analogous
#4C7BDB #644CDB #AC4CDB
triadic
#644CDB #DB644C #4CDB64
tetradic
#644CDB #DB4C7B #C3DB4C #4CDBAC
square
#644CDB #DB4C7B #C3DB4C #4CDBAC
split-complementary
#644CDB #DBAC4C #7BDB4C
monochromatic
#301D90 #4127C3 #644CDB #907FE5 #BCB2EF

Accessibility & contrast

On white

5.84
#644CDB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.60
#644CDB on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CDB
5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644CDB#FFFFFF#000000##FFFFFF
##644CDB1.005.843.605.84
#FFFFFF5.841.0021.001.00
#0000003.6021.001.0021.00
##FFFFFF5.841.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0069DF
Deuteranopia (green-blind)
#0060D8
Tritanopia (blue-blind)
#2E708D
Achromatopsia (no color)
#656565

Design tokens & code

CSS
--color: #644cdb;
/* rgb */ color: rgb(100, 76, 219);
/* oklch */ color: oklch(52.7% 0.208 284.4);
Tailwind
colors: {
  custom: {
    50: '#9b80e7',
    500: '#644cdb',
    950: '#000000',
  },
}
SCSS
$custom: #644cdb;
$custom-light: #9b80e7;
$custom-dark: #000000;
JSON
{
  "hex": "#644cdb",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 219
  },
  "hsl": {
    "h": 250.07,
    "s": 66.512,
    "l": 57.843
  },
  "oklch": {
    "l": 0.5266,
    "c": 0.20769,
    "h": 284.4
  },
  "luminance": 0.12993
}

Semantic roles & 50–950 ramp

primary
#644CDB
secondary
#D4DEA5
accent
#E93ECD
background
#FAF7FE
surface
#F4EEFD
border
#CEC9D5
text
#0F0A16
muted
#7F7C84

Preview Lab

Preview with #644CDB

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

Preview Lab → · Contrast checker → · Palette generator →

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