#644CB4#644CB4

#644CB4 is a mid, vivid violet. Relative luminance 0.112; OKLCH L 49.7% C 0.158 H 290.1°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#644CB4
RGB	rgb(100, 76, 180)
HSL	hsl(254, 41%, 50%)
HSV	hsv(254, 58%, 71%)
CMYK	cmyk(44.4%, 57.8%, 0%, 29.4%)
CIE-LAB	lab(39.87, 35.69, -52.07)
CIE-LCH	lch(39.87, 63.13, 304.43°)
OKLab	oklab(49.65% 0.0542 -0.1484)
OKLCH	oklch(49.65% 0.158 290.1)
XYZ	xyz(16.0759, 11.1729, 44.4807)
Luminance	0.1117 (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

#644CB4 #9CB44C

analogous

#4C68B4 #644CB4 #984CB4

triadic

#644CB4 #B4644C #4CB464

tetradic

#644CB4 #B44C68 #9CB44C #4CB498

square

#644CB4 #B44C68 #9CB44C #4CB498

split-complementary

#644CB4 #B4984C #68B44C

monochromatic

#34275E #4C3A89 #644CB4 #8977C6 #AFA2D8

Accessibility & contrast

On white

6.49

#644CB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#644CB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CB4

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CB4	#FFFFFF	#000000	##FFFFFF
##644CB4	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0760B7

Deuteranopia (green-blind)

#0F5CB2

Tritanopia (blue-blind)

#4C6378

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644cb4;
/* rgb */ color: rgb(100, 76, 180);
/* oklch */ color: oklch(49.7% 0.158 290.1);

Tailwind

colors: {
  custom: {
    50: '#967fcb',
    500: '#644cb4',
    950: '#000000',
  },
}

SCSS

$custom: #644cb4;
$custom-light: #967fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#644cb4",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 180
  },
  "hsl": {
    "h": 253.846,
    "s": 40.945,
    "l": 50.196
  },
  "oklch": {
    "l": 0.49653,
    "c": 0.15801,
    "h": 290.1
  },
  "luminance": 0.11173
}

Semantic roles & 50–950 ramp

primary

#644CB4

secondary

#BAC597

accent

#D157B5

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644CB4

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

Preview Lab → · Contrast checker → · Palette generator →