#644FB3#644FB3

#644FB3 is a mid, vivid violet. Relative luminance 0.116; OKLCH L 50.1% C 0.152 H 289.4°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#644FB3
RGB	rgb(100, 79, 179)
HSL	hsl(253, 40%, 51%)
HSV	hsv(253, 56%, 70%)
CMYK	cmyk(44.1%, 55.9%, 0%, 29.8%)
CIE-LAB	lab(40.50, 33.61, -50.47)
CIE-LCH	lch(40.50, 60.63, 303.66°)
OKLab	oklab(50.1% 0.0506 -0.1437)
OKLCH	oklch(50.1% 0.152 289.4)
XYZ	xyz(16.1859, 11.5554, 44.0167)
Luminance	0.1156 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FB3 #9EB34F

analogous

#4F6CB3 #644FB3 #964FB3

triadic

#644FB3 #B3644F #4FB364

tetradic

#644FB3 #B34F6C #9EB34F #4FB396

square

#644FB3 #B34F6C #9EB34F #4FB396

split-complementary

#644FB3 #B3964F #6CB34F

monochromatic

#34295F #4C3B89 #644FB3 #8A7AC5 #AFA4D8

Accessibility & contrast

On white

6.34

#644FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#644FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FB3

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FB3	#FFFFFF	#000000	##FFFFFF
##644FB3	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1861B6

Deuteranopia (green-blind)

#1C5DB1

Tritanopia (blue-blind)

#4D6579

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644fb3;
/* rgb */ color: rgb(100, 79, 179);
/* oklch */ color: oklch(50.1% 0.152 289.4);

Tailwind

colors: {
  custom: {
    50: '#9581ca',
    500: '#644fb3',
    950: '#000000',
  },
}

SCSS

$custom: #644fb3;
$custom-light: #9581ca;
$custom-dark: #000000;

JSON

{
  "hex": "#644fb3",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 179
  },
  "hsl": {
    "h": 252.6,
    "s": 39.683,
    "l": 50.588
  },
  "oklch": {
    "l": 0.50097,
    "c": 0.15235,
    "h": 289.4
  },
  "luminance": 0.11556
}

Semantic roles & 50–950 ramp

primary

#644FB3

secondary

#BCC599

accent

#D058B7

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644FB3

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

Preview Lab → · Contrast checker → · Palette generator →