#644CAA#644CAA

#644CAA is a mid, vivid violet. Relative luminance 0.108; OKLCH L 49.0% C 0.145 H 291.9°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#644CAA
RGB	rgb(100, 76, 170)
HSL	hsl(255, 38%, 48%)
HSV	hsv(255, 55%, 67%)
CMYK	cmyk(41.2%, 55.3%, 0%, 33.3%)
CIE-LAB	lab(39.21, 32.80, -47.22)
CIE-LCH	lch(39.21, 57.50, 304.78°)
OKLab	oklab(48.95% 0.0541 -0.1342)
OKLCH	oklch(48.95% 0.145 291.9)
XYZ	xyz(15.0937, 10.7801, 39.3079)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.71

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CAA #92AA4C

analogous

#4C63AA #644CAA #934CAA

triadic

#644CAA #AA644C #4CAA64

tetradic

#644CAA #AA4C63 #92AA4C #4CAA93

square

#644CAA #AA4C63 #92AA4C #4CAA93

split-complementary

#644CAA #AA934C #63AA4C

monochromatic

#322655 #4B3980 #644CAA #8773C0 #AB9DD3

Accessibility & contrast

On white

6.65

#644CAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#644CAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CAA

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CAA	#FFFFFF	#000000	##FFFFFF
##644CAA	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5EAD

Deuteranopia (green-blind)

#245AA8

Tritanopia (blue-blind)

#516073

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644caa;
/* rgb */ color: rgb(100, 76, 170);
/* oklch */ color: oklch(49.0% 0.145 291.9);

Tailwind

colors: {
  custom: {
    50: '#947fc4',
    500: '#644caa',
    950: '#000000',
  },
}

SCSS

$custom: #644caa;
$custom-light: #947fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#644caa",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 170
  },
  "hsl": {
    "h": 255.319,
    "s": 38.211,
    "l": 48.235
  },
  "oklch": {
    "l": 0.48952,
    "c": 0.14466,
    "h": 291.9
  },
  "luminance": 0.1078
}

Semantic roles & 50–950 ramp

primary

#644CAA

secondary

#B4C092

accent

#CE5AB0

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644CAA

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

Preview Lab → · Contrast checker → · Palette generator →