#661F78#661F78

#661F78 is a dark, vivid purple. Relative luminance 0.052; OKLCH L 39.2% C 0.152 H 318.7°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#661F78
RGB	rgb(102, 31, 120)
HSL	hsl(288, 59%, 30%)
HSV	hsv(288, 74%, 47%)
CMYK	cmyk(15%, 74.2%, 0%, 52.9%)
CIE-LAB	lab(27.19, 44.73, -35.85)
CIE-LCH	lch(27.19, 57.32, 321.29°)
OKLab	oklab(39.2% 0.1144 -0.1006)
OKLCH	oklch(39.2% 0.152 318.7)
XYZ	xyz(9.3592, 5.1613, 18.2689)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661F78 #31781F

analogous

#3A1F78 #661F78 #781F5E

triadic

#661F78 #78661F #1F7866

tetradic

#661F78 #783A1F #31781F #1F5E78

square

#661F78 #783A1F #31781F #1F5E78

split-complementary

#661F78 #5E781F #1F783A

monochromatic

#150618 #3D1247 #661F78 #8F2CA9 #B243CE

Accessibility & contrast

On white

10.33

#661F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#661F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661F78

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661F78	#FFFFFF	#000000	##FFFFFF
##661F78	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7B

Deuteranopia (green-blind)

#244376

Tritanopia (blue-blind)

#663049

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #661f78;
/* rgb */ color: rgb(102, 31, 120);
/* oklch */ color: oklch(39.2% 0.152 318.7);

Tailwind

colors: {
  custom: {
    50: '#95629f',
    500: '#661f78',
    950: '#000000',
  },
}

SCSS

$custom: #661f78;
$custom-light: #95629f;
$custom-dark: #000000;

JSON

{
  "hex": "#661f78",
  "rgb": {
    "r": 102,
    "g": 31,
    "b": 120
  },
  "hsl": {
    "h": 287.865,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.39197,
    "c": 0.15231,
    "h": 318.7
  },
  "luminance": 0.05161
}

Semantic roles & 50–950 ramp

primary

#661F78

secondary

#5CAB47

accent

#E24665

background

#F9F6F9

surface

#F2EBF2

border

#CCC6CC

text

#0E050E

muted

#7E7A7E

Preview Lab

Preview with #661F78

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

Preview Lab → · Contrast checker → · Palette generator →