#661B99#661B99

#661B99 is a dark, vivid violet. Relative luminance 0.059; OKLCH L 41.4% C 0.188 H 306.4°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#661B99
RGB	rgb(102, 27, 153)
HSL	hsl(276, 70%, 35%)
HSV	hsv(276, 82%, 60%)
CMYK	cmyk(33.3%, 82.4%, 0%, 40%)
CIE-LAB	lab(29.18, 53.41, -53.19)
CIE-LCH	lch(29.18, 75.38, 315.12°)
OKLab	oklab(41.39% 0.1117 -0.1515)
OKLCH	oklch(41.39% 0.188 306.4)
XYZ	xyz(11.6199, 5.9087, 30.6592)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B99 #4E991B

analogous

#271B99 #661B99 #991B8D

triadic

#661B99 #99661B #1B9966

tetradic

#661B99 #99271B #4E991B #1B8D99

square

#661B99 #99271B #4E991B #1B8D99

split-complementary

#661B99 #8D991B #1B9927

monochromatic

#210931 #431265 #661B99 #8924CD #A54FE0

Accessibility & contrast

On white

9.63

#661B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#661B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B99

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B99	#FFFFFF	#000000	##FFFFFF
##661B99	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439C

Deuteranopia (green-blind)

#004597

Tritanopia (blue-blind)

#5D3D5B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #661b99;
/* rgb */ color: rgb(102, 27, 153);
/* oklch */ color: oklch(41.4% 0.188 306.4);

Tailwind

colors: {
  custom: {
    50: '#9762b8',
    500: '#661b99',
    950: '#000000',
  },
}

SCSS

$custom: #661b99;
$custom-light: #9762b8;
$custom-dark: #000000;

JSON

{
  "hex": "#661b99",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 153
  },
  "hsl": {
    "h": 275.714,
    "s": 70,
    "l": 35.294
  },
  "oklch": {
    "l": 0.41391,
    "c": 0.18821,
    "h": 306.4
  },
  "luminance": 0.05909
}

Semantic roles & 50–950 ramp

primary

#661B99

secondary

#7DC24E

accent

#ED3B83

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #661B99

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

Preview Lab → · Contrast checker → · Palette generator →