#644BBB#644BBB

#644BBB is a mid, vivid violet. Relative luminance 0.113; OKLCH L 50.0% C 0.169 H 289.1°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#644BBB
RGB	rgb(100, 75, 187)
HSL	hsl(253, 45%, 51%)
HSV	hsv(253, 60%, 73%)
CMYK	cmyk(46.5%, 59.9%, 0%, 26.7%)
CIE-LAB	lab(40.13, 38.33, -55.77)
CIE-LCH	lch(40.13, 67.67, 304.50°)
OKLab	oklab(50% 0.0552 -0.1593)
OKLCH	oklch(50% 0.169 289.1)
XYZ	xyz(16.7387, 11.3287, 48.3088)
Luminance	0.1133 (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

#644BBB #A2BB4B

analogous

#4B6ABB #644BBB #9C4BBB

triadic

#644BBB #BB644B #4BBB64

tetradic

#644BBB #BB4B6A #A2BB4B #4BBB9C

square

#644BBB #BB4B6A #A2BB4B #4BBB9C

split-complementary

#644BBB #BB9C4B #6ABB4B

monochromatic

#342665 #4B3792 #644BBB #8A77CC #B1A4DD

Accessibility & contrast

On white

6.43

#644BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#644BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BBB

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BBB	#FFFFFF	#000000	##FFFFFF
##644BBB	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BF

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#49657C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #644bbb;
/* rgb */ color: rgb(100, 75, 187);
/* oklch */ color: oklch(50.0% 0.169 289.1);

Tailwind

colors: {
  custom: {
    50: '#967ed0',
    500: '#644bbb',
    950: '#000000',
  },
}

SCSS

$custom: #644bbb;
$custom-light: #967ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#644bbb",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 187
  },
  "hsl": {
    "h": 253.393,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49997,
    "c": 0.16859,
    "h": 289.1
  },
  "luminance": 0.11329
}

Semantic roles & 50–950 ramp

primary

#644BBB

secondary

#BFCA98

accent

#D553B8

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #644BBB

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

Preview Lab → · Contrast checker → · Palette generator →