#644B73#644B73

#644B73 is a mid, moderate violet. Relative luminance 0.090; OKLCH L 45.5% C 0.070 H 312.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#644B73
RGB	rgb(100, 75, 115)
HSL	hsl(278, 21%, 37%)
HSV	hsv(278, 35%, 45%)
CMYK	cmyk(13%, 34.8%, 0%, 54.9%)
CIE-LAB	lab(35.94, 18.77, -18.93)
CIE-LCH	lch(35.94, 26.65, 314.76°)
OKLab	oklab(45.52% 0.0472 -0.0519)
OKLCH	oklch(45.52% 0.07 312.3)
XYZ	xyz(10.8656, 8.9794, 17.3771)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644B73 #5A734B

analogous

#504B73 #644B73 #734B6E

triadic

#644B73 #73644B #4B7364

tetradic

#644B73 #73504B #5A734B #4B6E73

square

#644B73 #73504B #5A734B #4B6E73

split-complementary

#644B73 #6E734B #4B7350

monochromatic

#241B29 #44334E #644B73 #846398 #A187B1

Accessibility & contrast

On white

7.51

#644B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#644B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644B73

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644B73	#FFFFFF	#000000	##FFFFFF
##644B73	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445375

Deuteranopia (green-blind)

#4A5572

Tritanopia (blue-blind)

#63505A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #644b73;
/* rgb */ color: rgb(100, 75, 115);
/* oklch */ color: oklch(45.5% 0.070 312.3);

Tailwind

colors: {
  custom: {
    50: '#917d9b',
    500: '#644b73',
    950: '#000000',
  },
}

SCSS

$custom: #644b73;
$custom-light: #917d9b;
$custom-dark: #000000;

JSON

{
  "hex": "#644b73",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 115
  },
  "hsl": {
    "h": 277.5,
    "s": 21.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.45524,
    "c": 0.07021,
    "h": 312.3
  },
  "luminance": 0.08979
}

Semantic roles & 50–950 ramp

primary

#644B73

secondary

#899E7C

accent

#BE6A89

background

#F8F7F9

surface

#F0EEF2

border

#CBC9CC

text

#0C090E

muted

#7D7B7E

Preview Lab

Preview with #644B73

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

Preview Lab → · Contrast checker → · Palette generator →