#644C99#644C99

#644C99 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 47.8% C 0.121 H 295.9°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#644C99
RGB	rgb(100, 76, 153)
HSL	hsl(259, 34%, 45%)
HSV	hsv(259, 50%, 60%)
CMYK	cmyk(34.6%, 50.3%, 0%, 40%)
CIE-LAB	lab(38.16, 28.00, -38.73)
CIE-LCH	lch(38.16, 47.79, 305.86°)
OKLab	oklab(47.84% 0.0529 -0.1093)
OKLCH	oklch(47.84% 0.121 295.9)
XYZ	xyz(13.5883, 10.1779, 31.3794)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644C99 #81994C

analogous

#4C5B99 #644C99 #8A4C99

triadic

#644C99 #99644C #4C9964

tetradic

#644C99 #994C5B #81994C #4C998A

square

#644C99 #994C5B #81994C #4C998A

split-complementary

#644C99 #998A4C #5B994C

monochromatic

#2F2347 #493870 #644C99 #836CB6 #A695CA

Accessibility & contrast

On white

6.92

#644C99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#644C99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644C99

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644C99	#FFFFFF	#000000	##FFFFFF
##644C99	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315A9C

Deuteranopia (green-blind)

#365997

Tritanopia (blue-blind)

#585B6B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #644c99;
/* rgb */ color: rgb(100, 76, 153);
/* oklch */ color: oklch(47.8% 0.121 295.9);

Tailwind

colors: {
  custom: {
    50: '#937eb7',
    500: '#644c99',
    950: '#000000',
  },
}

SCSS

$custom: #644c99;
$custom-light: #937eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#644c99",
  "rgb": {
    "r": 100,
    "g": 76,
    "b": 153
  },
  "hsl": {
    "h": 258.701,
    "s": 33.624,
    "l": 44.902
  },
  "oklch": {
    "l": 0.47835,
    "c": 0.12141,
    "h": 295.9
  },
  "luminance": 0.10178
}

Semantic roles & 50–950 ramp

primary

#644C99

secondary

#A9B78A

accent

#CA5EA8

background

#F9F7FB

surface

#F1EEF6

border

#CBC9D0

text

#0D0A11

muted

#7E7C80

Preview Lab

Preview with #644C99

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

Preview Lab → · Contrast checker → · Palette generator →