#661F8D#661F8D

#661F8D is a dark, vivid violet. Relative luminance 0.057; OKLCH L 40.8% C 0.173 H 310.1°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#661F8D
RGB	rgb(102, 31, 141)
HSL	hsl(279, 64%, 34%)
HSV	hsv(279, 78%, 55%)
CMYK	cmyk(27.7%, 78%, 0%, 44.7%)
CIE-LAB	lab(28.72, 49.26, -46.56)
CIE-LCH	lch(28.72, 67.78, 316.62°)
OKLab	oklab(40.76% 0.1113 -0.132)
OKLCH	oklch(40.76% 0.173 310.1)
XYZ	xyz(10.7762, 5.7281, 25.7321)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661F8D #468D1F

analogous

#2F1F8D #661F8D #8D1F7D

triadic

#661F8D #8D661F #1F8D66

tetradic

#661F8D #8D2F1F #468D1F #1F7D8D

square

#661F8D #8D2F1F #468D1F #1F7D8D

split-complementary

#661F8D #7D8D1F #1F8D2F

monochromatic

#1D0929 #42145B #661F8D #8A2ABF #A74ED8

Accessibility & contrast

On white

9.79

#661F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#661F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661F8D

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661F8D	#FFFFFF	#000000	##FFFFFF
##661F8D	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004190

Deuteranopia (green-blind)

#00458B

Tritanopia (blue-blind)

#603A55

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #661f8d;
/* rgb */ color: rgb(102, 31, 141);
/* oklch */ color: oklch(40.8% 0.173 310.1);

Tailwind

colors: {
  custom: {
    50: '#9663af',
    500: '#661f8d',
    950: '#000000',
  },
}

SCSS

$custom: #661f8d;
$custom-light: #9663af;
$custom-dark: #000000;

JSON

{
  "hex": "#661f8d",
  "rgb": {
    "r": 102,
    "g": 31,
    "b": 141
  },
  "hsl": {
    "h": 278.727,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40762,
    "c": 0.17267,
    "h": 310.1
  },
  "luminance": 0.05728
}

Semantic roles & 50–950 ramp

primary

#661F8D

secondary

#74BB4D

accent

#E7417C

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #661F8D

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

Preview Lab → · Contrast checker → · Palette generator →