#644178#644178

#644178 is a dark, moderate violet. Relative luminance 0.078; OKLCH L 43.9% C 0.096 H 312.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#644178
RGB	rgb(100, 65, 120)
HSL	hsl(278, 30%, 36%)
HSV	hsv(278, 46%, 47%)
CMYK	cmyk(16.7%, 45.8%, 0%, 52.9%)
CIE-LAB	lab(33.66, 26.13, -25.60)
CIE-LCH	lch(33.66, 36.58, 315.59°)
OKLab	oklab(43.88% 0.0646 -0.071)
OKLCH	oklch(43.88% 0.096 312.3)
XYZ	xyz(10.5354, 7.8462, 18.7251)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644178 #557841

analogous

#494178 #644178 #784171

triadic

#644178 #786441 #417864

tetradic

#644178 #784941 #557841 #417178

square

#644178 #784941 #557841 #417178

split-complementary

#644178 #717841 #417849

monochromatic

#221629 #432B50 #644178 #8557A0 #A27CB8

Accessibility & contrast

On white

8.17

#644178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#644178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644178

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644178	#FFFFFF	#000000	##FFFFFF
##644178	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364D7A

Deuteranopia (green-blind)

#3F5076

Tritanopia (blue-blind)

#624957

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #644178;
/* rgb */ color: rgb(100, 65, 120);
/* oklch */ color: oklch(43.9% 0.096 312.3);

Tailwind

colors: {
  custom: {
    50: '#91769f',
    500: '#644178',
    950: '#000000',
  },
}

SCSS

$custom: #644178;
$custom-light: #91769f;
$custom-dark: #000000;

JSON

{
  "hex": "#644178",
  "rgb": {
    "r": 100,
    "g": 65,
    "b": 120
  },
  "hsl": {
    "h": 278.182,
    "s": 29.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.43877,
    "c": 0.09601,
    "h": 312.3
  },
  "luminance": 0.07846
}

Semantic roles & 50–950 ramp

primary

#644178

secondary

#84A372

accent

#C66286

background

#F9F7F9

surface

#F1EDF2

border

#CBC8CC

text

#0D080E

muted

#7E7B7E

Preview Lab

Preview with #644178

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

Preview Lab → · Contrast checker → · Palette generator →