#644BB4#644BB4

#644BB4 is a mid, vivid violet. Relative luminance 0.110; OKLCH L 49.5% C 0.159 H 290.3°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#644BB4
RGB	rgb(100, 75, 180)
HSL	hsl(254, 41%, 50%)
HSV	hsv(254, 58%, 71%)
CMYK	cmyk(44.4%, 58.3%, 0%, 29.4%)
CIE-LAB	lab(39.64, 36.29, -52.44)
CIE-LCH	lch(39.64, 63.77, 304.68°)
OKLab	oklab(49.49% 0.0554 -0.1495)
OKLCH	oklch(49.49% 0.159 290.3)
XYZ	xyz(16.0075, 11.0362, 44.4579)
Luminance	0.1104 (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

#644BB4 #9BB44B

analogous

#4B66B4 #644BB4 #994BB4

triadic

#644BB4 #B4644B #4BB464

tetradic

#644BB4 #B44B66 #9BB44B #4BB499

square

#644BB4 #B44B66 #9BB44B #4BB499

split-complementary

#644BB4 #B4994B #66B44B

monochromatic

#34275E #4C3989 #644BB4 #8976C6 #AEA1D8

Accessibility & contrast

On white

6.55

#644BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#644BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BB4

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BB4	#FFFFFF	#000000	##FFFFFF
##644BB4	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB7

Deuteranopia (green-blind)

#0B5BB2

Tritanopia (blue-blind)

#4C6278

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #644bb4;
/* rgb */ color: rgb(100, 75, 180);
/* oklch */ color: oklch(49.5% 0.159 290.3);

Tailwind

colors: {
  custom: {
    50: '#967ecb',
    500: '#644bb4',
    950: '#000000',
  },
}

SCSS

$custom: #644bb4;
$custom-light: #967ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#644bb4",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 180
  },
  "hsl": {
    "h": 254.286,
    "s": 41.176,
    "l": 50
  },
  "oklch": {
    "l": 0.49485,
    "c": 0.15944,
    "h": 290.3
  },
  "luminance": 0.11037
}

Semantic roles & 50–950 ramp

primary

#644BB4

secondary

#BAC596

accent

#D157B4

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644BB4

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

Preview Lab → · Contrast checker → · Palette generator →