#644AB5#644AB5

#644AB5 is a mid, vivid violet. Relative luminance 0.109; OKLCH L 49.4% C 0.162 H 290.4°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#644AB5
RGB	rgb(100, 74, 181)
HSL	hsl(255, 42%, 50%)
HSV	hsv(255, 59%, 71%)
CMYK	cmyk(44.8%, 59.1%, 0%, 29%)
CIE-LAB	lab(39.48, 37.17, -53.29)
CIE-LCH	lch(39.48, 64.97, 304.90°)
OKLab	oklab(49.39% 0.0565 -0.152)
OKLCH	oklch(49.39% 0.162 290.4)
XYZ	xyz(16.0425, 10.9425, 44.9740)
Luminance	0.1094 (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

#644AB5 #9BB54A

analogous

#4A66B5 #644AB5 #994AB5

triadic

#644AB5 #B5644A #4AB564

tetradic

#644AB5 #B54A66 #9BB54A #4AB599

square

#644AB5 #B54A66 #9BB54A #4AB599

split-complementary

#644AB5 #B5994A #66B54A

monochromatic

#34265E #4C388A #644AB5 #8975C7 #AEA1D9

Accessibility & contrast

On white

6.59

#644AB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#644AB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644AB5

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644AB5	#FFFFFF	#000000	##FFFFFF
##644AB5	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB9

Deuteranopia (green-blind)

#015BB3

Tritanopia (blue-blind)

#4C6278

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #644ab5;
/* rgb */ color: rgb(100, 74, 181);
/* oklch */ color: oklch(49.4% 0.162 290.4);

Tailwind

colors: {
  custom: {
    50: '#967dcc',
    500: '#644ab5',
    950: '#000000',
  },
}

SCSS

$custom: #644ab5;
$custom-light: #967dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#644ab5",
  "rgb": {
    "r": 100,
    "g": 74,
    "b": 181
  },
  "hsl": {
    "h": 254.579,
    "s": 41.961,
    "l": 50
  },
  "oklch": {
    "l": 0.49391,
    "c": 0.16217,
    "h": 290.4
  },
  "luminance": 0.10943
}

Semantic roles & 50–950 ramp

primary

#644AB5

secondary

#BAC595

accent

#D256B4

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #644AB5

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

Preview Lab → · Contrast checker → · Palette generator →