#661DB4#661DB4

#661DB4 is a dark, highly saturated violet. Relative luminance 0.070; OKLCH L 43.9% C 0.213 H 298.6°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#661DB4
RGB	rgb(102, 29, 180)
HSL	hsl(269, 72%, 41%)
HSV	hsv(269, 84%, 71%)
CMYK	cmyk(43.3%, 83.9%, 0%, 29.4%)
CIE-LAB	lab(31.80, 58.98, -65.19)
CIE-LCH	lch(31.80, 87.91, 312.13°)
OKLab	oklab(43.94% 0.1017 -0.1867)
OKLCH	oklch(43.94% 0.213 298.6)
XYZ	xyz(14.1549, 6.9986, 43.7763)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661DB4 #6BB41D

analogous

#1D1FB4 #661DB4 #B11DB4

triadic

#661DB4 #B4661D #1DB466

tetradic

#661DB4 #B41D1F #6BB41D #1DB4B1

square

#661DB4 #B41D1F #6BB41D #1DB4B1

split-complementary

#661DB4 #B4B11D #1FB41D

monochromatic

#2A0C4B #48157F #661DB4 #8430DE #A465E6

Accessibility & contrast

On white

8.75

#661DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#661DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661DB4

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661DB4	#FFFFFF	#000000	##FFFFFF
##661DB4	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB8

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#524A6B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #661db4;
/* rgb */ color: rgb(102, 29, 180);
/* oklch */ color: oklch(43.9% 0.213 298.6);

Tailwind

colors: {
  custom: {
    50: '#9a64cc',
    500: '#661db4',
    950: '#000000',
  },
}

SCSS

$custom: #661db4;
$custom-light: #9a64cc;
$custom-dark: #000000;

JSON

{
  "hex": "#661db4",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 180
  },
  "hsl": {
    "h": 269.007,
    "s": 72.249,
    "l": 40.98
  },
  "oklch": {
    "l": 0.43941,
    "c": 0.21259,
    "h": 298.6
  },
  "luminance": 0.06999
}

Semantic roles & 50–950 ramp

primary

#661DB4

secondary

#98CB61

accent

#EF3997

background

#FAF6FC

surface

#F3EBF9

border

#CDC6D2

text

#0F0613

muted

#7F7A82

Preview Lab

Preview with #661DB4

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

Preview Lab → · Contrast checker → · Palette generator →