#644FB4#644FB4

#644FB4 is a mid, vivid violet. Relative luminance 0.116; OKLCH L 50.2% C 0.154 H 289.2°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#644FB4
RGB	rgb(100, 79, 180)
HSL	hsl(252, 40%, 51%)
HSV	hsv(252, 56%, 71%)
CMYK	cmyk(44.4%, 56.1%, 0%, 29.4%)
CIE-LAB	lab(40.57, 33.90, -50.95)
CIE-LCH	lch(40.57, 61.20, 303.64°)
OKLab	oklab(50.17% 0.0506 -0.1451)
OKLCH	oklch(50.17% 0.154 289.2)
XYZ	xyz(16.2874, 11.5960, 44.5512)
Luminance	0.1160 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FB4 #9FB44F

analogous

#4F6CB4 #644FB4 #964FB4

triadic

#644FB4 #B4644F #4FB464

tetradic

#644FB4 #B44F6C #9FB44F #4FB496

square

#644FB4 #B44F6C #9FB44F #4FB496

split-complementary

#644FB4 #B4964F #6CB44F

monochromatic

#342960 #4C3B8B #644FB4 #8A7AC6 #B0A5D9

Accessibility & contrast

On white

6.33

#644FB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#644FB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FB4

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FB4	#FFFFFF	#000000	##FFFFFF
##644FB4	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1662B7

Deuteranopia (green-blind)

#1A5DB2

Tritanopia (blue-blind)

#4C657A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #644fb4;
/* rgb */ color: rgb(100, 79, 180);
/* oklch */ color: oklch(50.2% 0.154 289.2);

Tailwind

colors: {
  custom: {
    50: '#9581cb',
    500: '#644fb4',
    950: '#000000',
  },
}

SCSS

$custom: #644fb4;
$custom-light: #9581cb;
$custom-dark: #000000;

JSON

{
  "hex": "#644fb4",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 180
  },
  "hsl": {
    "h": 252.475,
    "s": 40.239,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50167,
    "c": 0.15369,
    "h": 289.2
  },
  "luminance": 0.11597
}

Semantic roles & 50–950 ramp

primary

#644FB4

secondary

#BCC699

accent

#D058B7

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644FB4

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

Preview Lab → · Contrast checker → · Palette generator →