#644CB3#644CB3

#644CB3 is a mid, vivid violet. Relative luminance 0.111; OKLCH L 49.6% C 0.157 H 290.2°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#644CB3
RGB	rgb(100, 76, 179)
HSL	hsl(254, 40%, 50%)
HSV	hsv(254, 58%, 70%)
CMYK	cmyk(44.1%, 57.5%, 0%, 29.8%)
CIE-LAB	lab(39.80, 35.40, -51.59)
CIE-LCH	lch(39.80, 62.57, 304.46°)
OKLab	oklab(49.58% 0.0542 -0.147)
OKLCH	oklch(49.58% 0.157 290.2)
XYZ	xyz(15.9744, 11.1323, 43.9462)
Luminance	0.1113 (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

#644CB3 #9BB34C

analogous

#4C67B3 #644CB3 #984CB3

triadic

#644CB3 #B3644C #4CB364

tetradic

#644CB3 #B34C67 #9BB34C #4CB398

square

#644CB3 #B34C67 #9BB34C #4CB398

split-complementary

#644CB3 #B3984C #67B34C

monochromatic

#34285D #4C3A88 #644CB3 #8977C5 #AEA2D7

Accessibility & contrast

On white

6.51

#644CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#644CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644CB3

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644CB3	#FFFFFF	#000000	##FFFFFF
##644CB3	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A60B6

Deuteranopia (green-blind)

#125BB1

Tritanopia (blue-blind)

#4D6378

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #644cb3;
/* rgb */ color: rgb(100, 76, 179);
/* oklch */ color: oklch(49.6% 0.157 290.2);

Tailwind

colors: {
  custom: {
    50: '#957fca',
    500: '#644cb3',
    950: '#000000',
  },
}

SCSS

$custom: #644cb3;
$custom-light: #957fca;
$custom-dark: #000000;

JSON

{
  "hex": "#644cb3",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 179
  },
  "hsl": {
    "h": 253.981,
    "s": 40.392,
    "l": 50
  },
  "oklch": {
    "l": 0.49582,
    "c": 0.15669,
    "h": 290.2
  },
  "luminance": 0.11133
}

Semantic roles & 50–950 ramp

primary

#644CB3

secondary

#BAC496

accent

#D058B4

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644CB3

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

Preview Lab → · Contrast checker → · Palette generator →