#644DA4#644DA4

#644DA4 is a mid, vivid violet. Relative luminance 0.107; OKLCH L 48.7% C 0.135 H 292.9°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#644DA4
RGB	rgb(100, 77, 164)
HSL	hsl(256, 36%, 47%)
HSV	hsv(256, 53%, 64%)
CMYK	cmyk(39%, 53%, 0%, 35.7%)
CIE-LAB	lab(39.07, 30.48, -43.88)
CIE-LCH	lch(39.07, 53.43, 304.78°)
OKLab	oklab(48.72% 0.0525 -0.1244)
OKLCH	oklch(48.72% 0.135 292.9)
XYZ	xyz(14.6085, 10.6971, 36.4098)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644DA4 #8DA44D

analogous

#4D62A4 #644DA4 #904DA4

triadic

#644DA4 #A4644D #4DA464

tetradic

#644DA4 #A44D62 #8DA44D #4DA490

square

#644DA4 #A44D62 #8DA44D #4DA490

split-complementary

#644DA4 #A4904D #62A44D

monochromatic

#312651 #4B397A #644DA4 #8572BD #A99BD0

Accessibility & contrast

On white

6.69

#644DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#644DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644DA4

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644DA4	#FFFFFF	#000000	##FFFFFF
##644DA4	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#285DA7

Deuteranopia (green-blind)

#2D5AA2

Tritanopia (blue-blind)

#545F71

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #644da4;
/* rgb */ color: rgb(100, 77, 164);
/* oklch */ color: oklch(48.7% 0.135 292.9);

Tailwind

colors: {
  custom: {
    50: '#947fbf',
    500: '#644da4',
    950: '#000000',
  },
}

SCSS

$custom: #644da4;
$custom-light: #947fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#644da4",
  "rgb": {
    "r": 100,
    "g": 77,
    "b": 164
  },
  "hsl": {
    "h": 255.862,
    "s": 36.1,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48724,
    "c": 0.13499,
    "h": 292.9
  },
  "luminance": 0.10697
}

Semantic roles & 50–950 ramp

primary

#644DA4

secondary

#B1BD90

accent

#CC5CAE

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0D0A12

muted

#7E7C81

Preview Lab

Preview with #644DA4

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

Preview Lab → · Contrast checker → · Palette generator →