#644EB9#644EB9

#644EB9 is a mid, vivid violet. Relative luminance 0.117; OKLCH L 50.4% C 0.162 H 288.7°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#644EB9
RGB	rgb(100, 78, 185)
HSL	hsl(252, 43%, 52%)
HSV	hsv(252, 58%, 73%)
CMYK	cmyk(45.9%, 57.8%, 0%, 27.5%)
CIE-LAB	lab(40.67, 35.97, -53.72)
CIE-LCH	lch(40.67, 64.65, 303.80°)
OKLab	oklab(50.35% 0.0518 -0.1533)
OKLCH	oklch(50.35% 0.162 288.7)
XYZ	xyz(16.7344, 11.6602, 47.2585)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.64

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EB9 #A3B94E

analogous

#4E6EB9 #644EB9 #9A4EB9

triadic

#644EB9 #B9644E #4EB964

tetradic

#644EB9 #B94E6E #A3B94E #4EB99A

square

#644EB9 #B94E6E #A3B94E #4EB99A

split-complementary

#644EB9 #B99A4E #6EB94E

monochromatic

#342865 #4B3991 #644EB9 #8A7ACA #B1A6DC

Accessibility & contrast

On white

6.30

#644EB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#644EB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EB9

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EB9	#FFFFFF	#000000	##FFFFFF
##644EB9	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0162BD

Deuteranopia (green-blind)

#065DB7

Tritanopia (blue-blind)

#49667C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #644eb9;
/* rgb */ color: rgb(100, 78, 185);
/* oklch */ color: oklch(50.4% 0.162 288.7);

Tailwind

colors: {
  custom: {
    50: '#9680cf',
    500: '#644eb9',
    950: '#000000',
  },
}

SCSS

$custom: #644eb9;
$custom-light: #9680cf;
$custom-dark: #000000;

JSON

{
  "hex": "#644eb9",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 185
  },
  "hsl": {
    "h": 252.336,
    "s": 43.32,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50352,
    "c": 0.16179,
    "h": 288.7
  },
  "luminance": 0.11661
}

Semantic roles & 50–950 ramp

primary

#644EB9

secondary

#BFC99A

accent

#D355B9

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644EB9

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

Preview Lab → · Contrast checker → · Palette generator →