#644FB5#644FB5

#644FB5 is a mid, vivid violet. Relative luminance 0.116; OKLCH L 50.2% C 0.155 H 289.1°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#644FB5
RGB	rgb(100, 79, 181)
HSL	hsl(252, 41%, 51%)
HSV	hsv(252, 56%, 71%)
CMYK	cmyk(44.8%, 56.4%, 0%, 29%)
CIE-LAB	lab(40.63, 34.19, -51.43)
CIE-LCH	lch(40.63, 61.76, 303.62°)
OKLab	oklab(50.24% 0.0506 -0.1465)
OKLCH	oklch(50.24% 0.155 289.1)
XYZ	xyz(16.3896, 11.6369, 45.0897)
Luminance	0.1164 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FB5 #A0B54F

analogous

#4F6DB5 #644FB5 #974FB5

triadic

#644FB5 #B5644F #4FB564

tetradic

#644FB5 #B54F6D #A0B54F #4FB597

square

#644FB5 #B54F6D #A0B54F #4FB597

split-complementary

#644FB5 #B5974F #6DB54F

monochromatic

#342961 #4C3B8C #644FB5 #8A7AC7 #B0A5D9

Accessibility & contrast

On white

6.31

#644FB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#644FB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FB5

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FB5	#FFFFFF	#000000	##FFFFFF
##644FB5	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1462B8

Deuteranopia (green-blind)

#175DB3

Tritanopia (blue-blind)

#4C657A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #644fb5;
/* rgb */ color: rgb(100, 79, 181);
/* oklch */ color: oklch(50.2% 0.155 289.1);

Tailwind

colors: {
  custom: {
    50: '#9581cc',
    500: '#644fb5',
    950: '#000000',
  },
}

SCSS

$custom: #644fb5;
$custom-light: #9581cc;
$custom-dark: #000000;

JSON

{
  "hex": "#644fb5",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 181
  },
  "hsl": {
    "h": 252.353,
    "s": 40.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50238,
    "c": 0.15504,
    "h": 289.1
  },
  "luminance": 0.11637
}

Semantic roles & 50–950 ramp

primary

#644FB5

secondary

#BDC699

accent

#D157B8

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644FB5

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

Preview Lab → · Contrast checker → · Palette generator →