#644BBC#644BBC

#644BBC is a mid, vivid violet. Relative luminance 0.114; OKLCH L 50.1% C 0.170 H 288.9°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#644BBC
RGB	rgb(100, 75, 188)
HSL	hsl(253, 46%, 52%)
HSV	hsv(253, 60%, 74%)
CMYK	cmyk(46.8%, 60.1%, 0%, 26.3%)
CIE-LAB	lab(40.20, 38.62, -56.24)
CIE-LCH	lch(40.20, 68.22, 304.48°)
OKLab	oklab(50.07% 0.0552 -0.1607)
OKLCH	oklch(50.07% 0.17 288.9)
XYZ	xyz(16.8461, 11.3717, 48.8745)
Luminance	0.1137 (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

#644BBC #A3BC4B

analogous

#4B6BBC #644BBC #9D4BBC

triadic

#644BBC #BC644B #4BBC64

tetradic

#644BBC #BC4B6B #A3BC4B #4BBC9D

square

#644BBC #BC4B6B #A3BC4B #4BBC9D

split-complementary

#644BBC #BC9D4B #6BBC4B

monochromatic

#342666 #4B3793 #644BBC #8A78CD #B1A4DD

Accessibility & contrast

On white

6.41

#644BBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#644BBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BBC

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BBC	#FFFFFF	#000000	##FFFFFF
##644BBC	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#005CBA

Tritanopia (blue-blind)

#48657C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644bbc;
/* rgb */ color: rgb(100, 75, 188);
/* oklch */ color: oklch(50.1% 0.170 288.9);

Tailwind

colors: {
  custom: {
    50: '#977ed1',
    500: '#644bbc',
    950: '#000000',
  },
}

SCSS

$custom: #644bbc;
$custom-light: #977ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#644bbc",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 188
  },
  "hsl": {
    "h": 253.274,
    "s": 45.749,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50072,
    "c": 0.16989,
    "h": 288.9
  },
  "luminance": 0.11372
}

Semantic roles & 50–950 ramp

primary

#644BBC

secondary

#BFCA99

accent

#D552B8

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644BBC

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

Preview Lab → · Contrast checker → · Palette generator →