#644CB0#644CB0

#644CB0 is a mid, vivid violet. Relative luminance 0.110; OKLCH L 49.4% C 0.153 H 290.8°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#644CB0
RGB	rgb(100, 76, 176)
HSL	hsl(254, 40%, 49%)
HSV	hsv(254, 57%, 69%)
CMYK	cmyk(43.2%, 56.8%, 0%, 31%)
CIE-LAB	lab(39.60, 34.53, -50.15)
CIE-LCH	lch(39.60, 60.88, 304.55°)
OKLab	oklab(49.37% 0.0542 -0.1428)
OKLCH	oklch(49.37% 0.153 290.8)
XYZ	xyz(15.6743, 11.0123, 42.3656)
Luminance	0.1101 (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

#644CB0 #98B04C

analogous

#4C66B0 #644CB0 #964CB0

triadic

#644CB0 #B0644C #4CB064

tetradic

#644CB0 #B04C66 #98B04C #4CB096

square

#644CB0 #B04C66 #98B04C #4CB096

split-complementary

#644CB0 #B0964C #66B04C

monochromatic

#33275B #4C3A85 #644CB0 #8876C4 #ADA0D6

Accessibility & contrast

On white

6.56

#644CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#644CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CB0

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CB0	#FFFFFF	#000000	##FFFFFF
##644CB0	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#135FB3

Deuteranopia (green-blind)

#1A5BAE

Tritanopia (blue-blind)

#4E6276

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #644cb0;
/* rgb */ color: rgb(100, 76, 176);
/* oklch */ color: oklch(49.4% 0.153 290.8);

Tailwind

colors: {
  custom: {
    50: '#957fc8',
    500: '#644cb0',
    950: '#000000',
  },
}

SCSS

$custom: #644cb0;
$custom-light: #957fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#644cb0",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 176
  },
  "hsl": {
    "h": 254.4,
    "s": 39.683,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49369,
    "c": 0.15271,
    "h": 290.8
  },
  "luminance": 0.11013
}

Semantic roles & 50–950 ramp

primary

#644CB0

secondary

#B8C395

accent

#D058B3

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644CB0

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

Preview Lab → · Contrast checker → · Palette generator →