#64178E#64178E

#64178E is a dark, vivid violet. Relative luminance 0.053; OKLCH L 39.9% C 0.181 H 309.4°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#64178E
RGB	rgb(100, 23, 142)
HSL	hsl(279, 72%, 32%)
HSV	hsv(279, 84%, 56%)
CMYK	cmyk(29.6%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(27.51, 51.96, -49.16)
CIE-LCH	lch(27.51, 71.53, 316.59°)
OKLab	oklab(39.88% 0.1149 -0.1397)
OKLCH	oklch(39.88% 0.181 309.4)
XYZ	xyz(10.4434, 5.2753, 26.0540)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64178E #418E17

analogous

#29178E #64178E #8E177C

triadic

#64178E #8E6417 #178E64

tetradic

#64178E #8E2917 #418E17 #177C8E

square

#64178E #8E2917 #418E17 #177C8E

split-complementary

#64178E #7C8E17 #178E29

monochromatic

#1A0625 #3F0E59 #64178E #8920C3 #A73FE0

Accessibility & contrast

On white

10.22

#64178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#64178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64178E

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64178E	#FFFFFF	#000000	##FFFFFF
##64178E	1.00	10.22	2.06	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E91

Deuteranopia (green-blind)

#00428C

Tritanopia (blue-blind)

#5E3754

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #64178e;
/* rgb */ color: rgb(100, 23, 142);
/* oklch */ color: oklch(39.9% 0.181 309.4);

Tailwind

colors: {
  custom: {
    50: '#955fb0',
    500: '#64178e',
    950: '#000000',
  },
}

SCSS

$custom: #64178e;
$custom-light: #955fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#64178e",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 278.824,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39876,
    "c": 0.18086,
    "h": 309.4
  },
  "luminance": 0.05275
}

Semantic roles & 50–950 ramp

primary

#64178E

secondary

#6EC040

accent

#EF3979

background

#F9F5FA

surface

#F2EAF5

border

#CCC6CF

text

#0E0511

muted

#7E7980

Preview Lab

Preview with #64178E

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

Preview Lab → · Contrast checker → · Palette generator →