#644F81#644F81

#644F81 is a mid, moderate violet. Relative luminance 0.099; OKLCH L 47.0% C 0.082 H 302.7°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#644F81
RGB	rgb(100, 79, 129)
HSL	hsl(265, 24%, 41%)
HSV	hsv(265, 39%, 51%)
CMYK	cmyk(22.5%, 38.8%, 0%, 49.4%)
CIE-LAB	lab(37.64, 19.73, -24.95)
CIE-LCH	lch(37.64, 31.81, 308.33°)
OKLab	oklab(47.02% 0.0444 -0.0692)
OKLCH	oklch(47.02% 0.082 302.7)
XYZ	xyz(12.0131, 9.8863, 22.0400)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644F81 #6C814F

analogous

#4F5381 #644F81 #7D4F81

triadic

#644F81 #81644F #4F8164

tetradic

#644F81 #814F53 #6C814F #4F817D

square

#644F81 #814F53 #6C814F #4F817D

split-complementary

#644F81 #817D4F #53814F

monochromatic

#292135 #47385B #644F81 #826AA4 #A290BB

Accessibility & contrast

On white

7.05

#644F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#644F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644F81

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644F81	#FFFFFF	#000000	##FFFFFF
##644F81	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435883

Deuteranopia (green-blind)

#485880

Tritanopia (blue-blind)

#5F5762

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #644f81;
/* rgb */ color: rgb(100, 79, 129);
/* oklch */ color: oklch(47.0% 0.082 302.7);

Tailwind

colors: {
  custom: {
    50: '#9180a6',
    500: '#644f81',
    950: '#000000',
  },
}

SCSS

$custom: #644f81;
$custom-light: #9180a6;
$custom-dark: #000000;

JSON

{
  "hex": "#644f81",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 129
  },
  "hsl": {
    "h": 265.2,
    "s": 24.038,
    "l": 40.784
  },
  "oklch": {
    "l": 0.47024,
    "c": 0.08226,
    "h": 302.7
  },
  "luminance": 0.09886
}

Semantic roles & 50–950 ramp

primary

#644F81

secondary

#99A884

accent

#C0679B

background

#F9F7FA

surface

#F1EEF4

border

#CBC9CE

text

#0D0A0F

muted

#7E7C7F

Preview Lab

Preview with #644F81

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

Preview Lab → · Contrast checker → · Palette generator →