#644BA4#644BA4

#644BA4 is a mid, vivid violet. Relative luminance 0.104; OKLCH L 48.4% C 0.138 H 293.5°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX#644BA4
RGBrgb(100, 75, 164)
HSLhsl(257, 37%, 47%)
HSVhsv(257, 54%, 64%)
CMYKcmyk(39%, 54.3%, 0%, 35.7%)
CIE-LABlab(38.59, 31.69, -44.64)
CIE-LCHlch(38.59, 54.75, 305.37°)
OKLaboklab(48.37% 0.0551 -0.1266)
OKLCHoklch(48.37% 0.138 293.5)
XYZxyz(14.4707, 10.4215, 36.3639)
Luminance0.1042 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#644BA4 #8BA44B
analogous
#4B5FA4 #644BA4 #914BA4
triadic
#644BA4 #A4644B #4BA464
tetradic
#644BA4 #A44B5F #8BA44B #4BA491
square
#644BA4 #A44B5F #8BA44B #4BA491
split-complementary
#644BA4 #A4914B #5FA44B
monochromatic
#312550 #4A387A #644BA4 #856FBD #A999D0

Accessibility & contrast

On white

6.81
#644BA4 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.08
#644BA4 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BA4
6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##644BA4#FFFFFF#000000##FFFFFF
##644BA41.006.813.086.81
#FFFFFF6.811.0021.001.00
#0000003.0821.001.0021.00
##FFFFFF6.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#245CA7
Deuteranopia (green-blind)
#2A59A2
Tritanopia (blue-blind)
#545D70
Achromatopsia (no color)
#5B5B5B

Design tokens & code

CSS
--color: #644ba4;
/* rgb */ color: rgb(100, 75, 164);
/* oklch */ color: oklch(48.4% 0.138 293.5);
Tailwind
colors: {
  custom: {
    50: '#947ebf',
    500: '#644ba4',
    950: '#000000',
  },
}
SCSS
$custom: #644ba4;
$custom-light: #947ebf;
$custom-dark: #000000;
JSON
{
  "hex": "#644ba4",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 164
  },
  "hsl": {
    "h": 256.854,
    "s": 37.238,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4837,
    "c": 0.13807,
    "h": 293.5
  },
  "luminance": 0.10422
}

Semantic roles & 50–950 ramp

primary
#644BA4
secondary
#B0BD8E
accent
#CD5BAD
background
#F9F7FB
surface
#F2EEF7
border
#CCC9D0
text
#0D0A12
muted
#7E7C81

Preview Lab

Preview with #644BA4

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

Preview Lab → · Contrast checker → · Palette generator →

#644BA4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva