#64178B#64178B

#64178B is a dark, vivid violet. Relative luminance 0.052; OKLCH L 39.6% C 0.178 H 310.5°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#64178B
RGB	rgb(100, 23, 139)
HSL	hsl(280, 72%, 32%)
HSV	hsv(280, 83%, 55%)
CMYK	cmyk(28.1%, 83.5%, 0%, 45.5%)
CIE-LAB	lab(27.26, 51.31, -47.69)
CIE-LCH	lch(27.26, 70.05, 317.09°)
OKLab	oklab(39.63% 0.1157 -0.1354)
OKLCH	oklch(39.63% 0.178 310.5)
XYZ	xyz(10.2212, 5.1864, 24.8837)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64178B #3E8B17

analogous

#2A178B #64178B #8B1778

triadic

#64178B #8B6417 #178B64

tetradic

#64178B #8B2A17 #3E8B17 #17788B

square

#64178B #8B2A17 #3E8B17 #17788B

split-complementary

#64178B #788B17 #178B2A

monochromatic

#180622 #3E0E56 #64178B #8A20C0 #A93DDF

Accessibility & contrast

On white

10.31

#64178B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#64178B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64178B

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64178B	#FFFFFF	#000000	##FFFFFF
##64178B	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#004289

Tritanopia (blue-blind)

#5F3552

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #64178b;
/* rgb */ color: rgb(100, 23, 139);
/* oklch */ color: oklch(39.6% 0.178 310.5);

Tailwind

colors: {
  custom: {
    50: '#955fae',
    500: '#64178b',
    950: '#000000',
  },
}

SCSS

$custom: #64178b;
$custom-light: #955fae;
$custom-dark: #000000;

JSON

{
  "hex": "#64178b",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 139
  },
  "hsl": {
    "h": 279.828,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39628,
    "c": 0.17808,
    "h": 310.5
  },
  "luminance": 0.05186
}

Semantic roles & 50–950 ramp

primary

#64178B

secondary

#6ABF3F

accent

#EE3976

background

#F9F5FA

surface

#F2EAF4

border

#CCC6CE

text

#0E0510

muted

#7E797F

Preview Lab

Preview with #64178B

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

Preview Lab → · Contrast checker → · Palette generator →