#644B9B#644B9B

#644B9B is a mid, vivid violet. Relative luminance 0.101; OKLCH L 47.8% C 0.126 H 295.7°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#644B9B
RGB	rgb(100, 75, 155)
HSL	hsl(259, 35%, 45%)
HSV	hsv(259, 52%, 61%)
CMYK	cmyk(35.5%, 51.6%, 0%, 39.2%)
CIE-LAB	lab(38.04, 29.16, -40.13)
CIE-LCH	lch(38.04, 49.61, 306.00°)
OKLab	oklab(47.78% 0.0545 -0.1134)
OKLCH	oklch(47.78% 0.126 295.7)
XYZ	xyz(13.6865, 10.1078, 32.2339)
Luminance	0.1011 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644B9B #829B4B

analogous

#4B5A9B #644B9B #8C4B9B

triadic

#644B9B #9B644B #4B9B64

tetradic

#644B9B #9B4B5A #829B4B #4B9B8C

square

#644B9B #9B4B5A #829B4B #4B9B8C

split-complementary

#644B9B #9B8C4B #5A9B4B

monochromatic

#2F2349 #493772 #644B9B #836CB8 #A695CC

Accessibility & contrast

On white

6.95

#644B9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#644B9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644B9B

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644B9B	#FFFFFF	#000000	##FFFFFF
##644B9B	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5A9E

Deuteranopia (green-blind)

#335899

Tritanopia (blue-blind)

#575B6C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #644b9b;
/* rgb */ color: rgb(100, 75, 155);
/* oklch */ color: oklch(47.8% 0.126 295.7);

Tailwind

colors: {
  custom: {
    50: '#937eb9',
    500: '#644b9b',
    950: '#000000',
  },
}

SCSS

$custom: #644b9b;
$custom-light: #937eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#644b9b",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 155
  },
  "hsl": {
    "h": 258.75,
    "s": 34.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4778,
    "c": 0.12579,
    "h": 295.7
  },
  "luminance": 0.10108
}

Semantic roles & 50–950 ramp

primary

#644B9B

secondary

#A9B88A

accent

#CB5DA9

background

#F9F7FB

surface

#F2EEF6

border

#CCC9D0

text

#0D0A11

muted

#7E7C80

Preview Lab

Preview with #644B9B

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

Preview Lab → · Contrast checker → · Palette generator →