#644CB2#644CB2

#644CB2 is a mid, vivid violet. Relative luminance 0.111; OKLCH L 49.5% C 0.155 H 290.4°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#644CB2
RGB	rgb(100, 76, 178)
HSL	hsl(254, 40%, 50%)
HSV	hsv(254, 57%, 70%)
CMYK	cmyk(43.8%, 57.3%, 0%, 30.2%)
CIE-LAB	lab(39.73, 35.11, -51.11)
CIE-LCH	lch(39.73, 62.01, 304.49°)
OKLab	oklab(49.51% 0.0542 -0.1456)
OKLCH	oklch(49.51% 0.155 290.4)
XYZ	xyz(15.8736, 11.0920, 43.4155)
Luminance	0.1109 (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

#644CB2 #9AB24C

analogous

#4C67B2 #644CB2 #974CB2

triadic

#644CB2 #B2644C #4CB264

tetradic

#644CB2 #B24C67 #9AB24C #4CB297

square

#644CB2 #B24C67 #9AB24C #4CB297

split-complementary

#644CB2 #B2974C #67B24C

monochromatic

#34275C #4C3A87 #644CB2 #8976C5 #AEA1D7

Accessibility & contrast

On white

6.52

#644CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#644CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CB2

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CB2	#FFFFFF	#000000	##FFFFFF
##644CB2	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E5FB5

Deuteranopia (green-blind)

#155BB0

Tritanopia (blue-blind)

#4D6277

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644cb2;
/* rgb */ color: rgb(100, 76, 178);
/* oklch */ color: oklch(49.5% 0.155 290.4);

Tailwind

colors: {
  custom: {
    50: '#957fca',
    500: '#644cb2',
    950: '#000000',
  },
}

SCSS

$custom: #644cb2;
$custom-light: #957fca;
$custom-dark: #000000;

JSON

{
  "hex": "#644cb2",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 178
  },
  "hsl": {
    "h": 254.118,
    "s": 40.157,
    "l": 49.804
  },
  "oklch": {
    "l": 0.4951,
    "c": 0.15536,
    "h": 290.4
  },
  "luminance": 0.11093
}

Semantic roles & 50–950 ramp

primary

#644CB2

secondary

#B9C496

accent

#D058B4

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644CB2

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

Preview Lab → · Contrast checker → · Palette generator →