#A666F3#A666F3

#A666F3 is a light, highly saturated violet. Relative luminance 0.241; OKLCH L 64.5% C 0.205 H 301.9°. Best body text is #000000 at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#A666F3
RGB	rgb(166, 102, 243)
HSL	hsl(267, 85%, 68%)
HSV	hsv(267, 58%, 95%)
CMYK	cmyk(31.7%, 58%, 0%, 4.7%)
CIE-LAB	lab(56.17, 52.86, -61.51)
CIE-LCH	lch(56.17, 81.10, 310.68°)
OKLab	oklab(64.46% 0.1082 -0.1741)
OKLCH	oklch(64.46% 0.205 301.9)
XYZ	xyz(36.6511, 24.0807, 87.4938)
Luminance	0.2408 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A666F3 #B3F366

analogous

#666CF3 #A666F3 #ED66F3

triadic

#A666F3 #F3A666 #66F3A6

tetradic

#A666F3 #F3666C #B3F366 #66F3ED

square

#A666F3 #F3666C #B3F366 #66F3ED

split-complementary

#A666F3 #F3ED66 #6CF366

monochromatic

#6710CE #852DEF #A666F3 #C79FF7 #E8D7FC

Accessibility & contrast

On white

3.61

#A666F3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.82

#A666F3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #A666F3

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A666F3	#FFFFFF	#000000	##000000
##A666F3	1.00	3.61	5.82	5.82
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.82	21.00	1.00	1.00
##000000	5.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2086F8

Deuteranopia (green-blind)

#3F86F0

Tritanopia (blue-blind)

#9783A3

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #a666f3;
/* rgb */ color: rgb(166, 102, 243);
/* oklch */ color: oklch(64.5% 0.205 301.9);

Tailwind

colors: {
  custom: {
    50: '#c594f8',
    500: '#a666f3',
    950: '#000000',
  },
}

SCSS

$custom: #a666f3;
$custom-light: #c594f8;
$custom-dark: #000000;

JSON

{
  "hex": "#a666f3",
  "rgb": {
    "r": 166,
    "g": 102,
    "b": 243
  },
  "hsl": {
    "h": 267.234,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.64464,
    "c": 0.20503,
    "h": 301.9
  },
  "luminance": 0.24081
}

Semantic roles & 50–950 ramp

primary

#A666F3

secondary

#DCF0C5

accent

#E2047D

background

#FCF9FF

surface

#F8F2FF

border

#D1CCD7

text

#130D17

muted

#827E85

Preview Lab

Preview with #A666F3

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

Preview Lab → · Contrast checker → · Palette generator →