#644CA9#644CA9

#644CA9 is a mid, vivid violet. Relative luminance 0.107; OKLCH L 48.9% C 0.143 H 292.1°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#644CA9
RGB	rgb(100, 76, 169)
HSL	hsl(255, 38%, 48%)
HSV	hsv(255, 55%, 66%)
CMYK	cmyk(40.8%, 55%, 0%, 33.7%)
CIE-LAB	lab(39.14, 32.51, -46.73)
CIE-LCH	lch(39.14, 56.93, 304.83°)
OKLab	oklab(48.88% 0.054 -0.1327)
OKLCH	oklch(48.88% 0.143 292.1)
XYZ	xyz(14.9995, 10.7424, 38.8116)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.85

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644CA9 #91A94C

analogous

#4C62A9 #644CA9 #924CA9

triadic

#644CA9 #A9644C #4CA964

tetradic

#644CA9 #A94C62 #91A94C #4CA992

square

#644CA9 #A94C62 #91A94C #4CA992

split-complementary

#644CA9 #A9924C #62A94C

monochromatic

#322655 #4B397F #644CA9 #8672C0 #AB9DD3

Accessibility & contrast

On white

6.67

#644CA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#644CA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CA9

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CA9	#FFFFFF	#000000	##FFFFFF
##644CA9	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#205EAC

Deuteranopia (green-blind)

#255AA7

Tritanopia (blue-blind)

#526073

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644ca9;
/* rgb */ color: rgb(100, 76, 169);
/* oklch */ color: oklch(48.9% 0.143 292.1);

Tailwind

colors: {
  custom: {
    50: '#947fc3',
    500: '#644ca9',
    950: '#000000',
  },
}

SCSS

$custom: #644ca9;
$custom-light: #947fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#644ca9",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 169
  },
  "hsl": {
    "h": 255.484,
    "s": 37.959,
    "l": 48.039
  },
  "oklch": {
    "l": 0.48884,
    "c": 0.14331,
    "h": 292.1
  },
  "luminance": 0.10743
}

Semantic roles & 50–950 ramp

primary

#644CA9

secondary

#B4BF91

accent

#CE5AB0

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A12

muted

#7E7C81

Preview Lab

Preview with #644CA9

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

Preview Lab → · Contrast checker → · Palette generator →