#661D8D#661D8D

#661D8D is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.6% C 0.175 H 310.3°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#661D8D
RGB	rgb(102, 29, 141)
HSL	hsl(279, 66%, 33%)
HSV	hsv(279, 79%, 55%)
CMYK	cmyk(27.7%, 79.4%, 0%, 44.7%)
CIE-LAB	lab(28.45, 50.02, -46.99)
CIE-LCH	lch(28.45, 68.63, 316.79°)
OKLab	oklab(40.58% 0.1131 -0.1332)
OKLCH	oklch(40.58% 0.175 310.3)
XYZ	xyz(10.7256, 5.6268, 25.7152)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.26

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D8D #448D1D

analogous

#2E1D8D #661D8D #8D1D7C

triadic

#661D8D #8D661D #1D8D66

tetradic

#661D8D #8D2E1D #448D1D #1D7C8D

square

#661D8D #8D2E1D #448D1D #1D7C8D

split-complementary

#661D8D #7C8D1D #1D8D2E

monochromatic

#1D0827 #41135A #661D8D #8B27C0 #A84BDA

Accessibility & contrast

On white

9.88

#661D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#661D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D8D

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D8D	#FFFFFF	#000000	##FFFFFF
##661D8D	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004090

Deuteranopia (green-blind)

#00448B

Tritanopia (blue-blind)

#613955

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661d8d;
/* rgb */ color: rgb(102, 29, 141);
/* oklch */ color: oklch(40.6% 0.175 310.3);

Tailwind

colors: {
  custom: {
    50: '#9662af',
    500: '#661d8d',
    950: '#000000',
  },
}

SCSS

$custom: #661d8d;
$custom-light: #9662af;
$custom-dark: #000000;

JSON

{
  "hex": "#661d8d",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 141
  },
  "hsl": {
    "h": 279.107,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40576,
    "c": 0.17478,
    "h": 310.3
  },
  "luminance": 0.05627
}

Semantic roles & 50–950 ramp

primary

#661D8D

secondary

#72BC4A

accent

#E93F7A

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #661D8D

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

Preview Lab → · Contrast checker → · Palette generator →