#64378B#64378B

#64378B is a dark, vivid violet. Relative luminance 0.073; OKLCH L 43.4% C 0.137 H 306.2°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#64378B
RGB	rgb(100, 55, 139)
HSL	hsl(272, 43%, 38%)
HSV	hsv(272, 60%, 55%)
CMYK	cmyk(28.1%, 60.4%, 0%, 45.5%)
CIE-LAB	lab(32.49, 36.70, -39.24)
CIE-LCH	lch(32.49, 53.73, 313.08°)
OKLab	oklab(43.37% 0.0811 -0.1107)
OKLCH	oklch(43.37% 0.137 306.2)
XYZ	xyz(11.2809, 7.3059, 25.2370)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64378B #5E8B37

analogous

#3A378B #64378B #8B3788

triadic

#64378B #8B6437 #378B64

tetradic

#64378B #8B3A37 #5E8B37 #37888B

square

#64378B #8B3A37 #5E8B37 #37888B

split-complementary

#64378B #888B37 #378B3A

monochromatic

#251433 #44265F #64378B #8448B7 #A174C8

Accessibility & contrast

On white

8.53

#64378B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#64378B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64378B

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64378B	#FFFFFF	#000000	##FFFFFF
##64378B	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134B8E

Deuteranopia (green-blind)

#284D89

Tritanopia (blue-blind)

#5E475B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #64378b;
/* rgb */ color: rgb(100, 55, 139);
/* oklch */ color: oklch(43.4% 0.137 306.2);

Tailwind

colors: {
  custom: {
    50: '#9370ad',
    500: '#64378b',
    950: '#000000',
  },
}

SCSS

$custom: #64378b;
$custom-light: #9370ad;
$custom-dark: #000000;

JSON

{
  "hex": "#64378b",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 139
  },
  "hsl": {
    "h": 272.143,
    "s": 43.299,
    "l": 38.039
  },
  "oklch": {
    "l": 0.43369,
    "c": 0.13724,
    "h": 306.2
  },
  "luminance": 0.07306
}

Semantic roles & 50–950 ramp

primary

#64378B

secondary

#8CB16D

accent

#D3558F

background

#F9F6FA

surface

#F2ECF4

border

#CCC7CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #64378B

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

Preview Lab → · Contrast checker → · Palette generator →