#64178F#64178F

#64178F is a dark, vivid violet. Relative luminance 0.053; OKLCH L 40.0% C 0.182 H 309.1°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#64178F
RGB	rgb(100, 23, 143)
HSL	hsl(279, 72%, 33%)
HSV	hsv(279, 84%, 56%)
CMYK	cmyk(30.1%, 83.9%, 0%, 43.9%)
CIE-LAB	lab(27.59, 52.18, -49.64)
CIE-LCH	lch(27.59, 72.02, 316.43°)
OKLab	oklab(39.96% 0.1146 -0.1411)
OKLCH	oklch(39.96% 0.182 309.1)
XYZ	xyz(10.5188, 5.3055, 26.4512)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64178F #428F17

analogous

#28178F #64178F #8F177E

triadic

#64178F #8F6417 #178F64

tetradic

#64178F #8F2817 #428F17 #177E8F

square

#64178F #8F2817 #428F17 #177E8F

split-complementary

#64178F #7E8F17 #178F28

monochromatic

#1A0626 #3F0F5A #64178F #891FC4 #A740E0

Accessibility & contrast

On white

10.19

#64178F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#64178F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64178F

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64178F	#FFFFFF	#000000	##FFFFFF
##64178F	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#5D3755

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #64178f;
/* rgb */ color: rgb(100, 23, 143);
/* oklch */ color: oklch(40.0% 0.182 309.1);

Tailwind

colors: {
  custom: {
    50: '#9560b1',
    500: '#64178f',
    950: '#000000',
  },
}

SCSS

$custom: #64178f;
$custom-light: #9560b1;
$custom-dark: #000000;

JSON

{
  "hex": "#64178f",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 143
  },
  "hsl": {
    "h": 278.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.3996,
    "c": 0.18179,
    "h": 309.1
  },
  "luminance": 0.05305
}

Semantic roles & 50–950 ramp

primary

#64178F

secondary

#6FC141

accent

#EF397A

background

#F9F5FB

surface

#F2EAF6

border

#CCC6D0

text

#0E0511

muted

#7E7980

Preview Lab

Preview with #64178F

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

Preview Lab → · Contrast checker → · Palette generator →