#644BB9#644BB9

#644BB9 is a mid, vivid violet. Relative luminance 0.112; OKLCH L 49.8% C 0.166 H 289.4°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#644BB9
RGB	rgb(100, 75, 185)
HSL	hsl(254, 44%, 51%)
HSV	hsv(254, 59%, 73%)
CMYK	cmyk(45.9%, 59.5%, 0%, 27.5%)
CIE-LAB	lab(39.99, 37.74, -54.82)
CIE-LCH	lch(39.99, 66.56, 304.55°)
OKLab	oklab(49.85% 0.0553 -0.1565)
OKLCH	oklch(49.85% 0.166 289.4)
XYZ	xyz(16.5261, 11.2436, 47.1890)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644BB9 #A0B94B

analogous

#4B69B9 #644BB9 #9B4BB9

triadic

#644BB9 #B9644B #4BB964

tetradic

#644BB9 #B94B69 #A0B94B #4BB99B

square

#644BB9 #B94B69 #A0B94B #4BB99B

split-complementary

#644BB9 #B99B4B #69B94B

monochromatic

#342763 #4C388F #644BB9 #8A77CA #B0A3DB

Accessibility & contrast

On white

6.46

#644BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#644BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BB9

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BB9	#FFFFFF	#000000	##FFFFFF
##644BB9	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BD

Deuteranopia (green-blind)

#005CB7

Tritanopia (blue-blind)

#4A647B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644bb9;
/* rgb */ color: rgb(100, 75, 185);
/* oklch */ color: oklch(49.8% 0.166 289.4);

Tailwind

colors: {
  custom: {
    50: '#967ecf',
    500: '#644bb9',
    950: '#000000',
  },
}

SCSS

$custom: #644bb9;
$custom-light: #967ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#644bb9",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 185
  },
  "hsl": {
    "h": 253.636,
    "s": 44,
    "l": 50.98
  },
  "oklch": {
    "l": 0.49849,
    "c": 0.16599,
    "h": 289.4
  },
  "luminance": 0.11244
}

Semantic roles & 50–950 ramp

primary

#644BB9

secondary

#BDC898

accent

#D454B7

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644BB9

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

Preview Lab → · Contrast checker → · Palette generator →