#66287D#66287D

#66287D is a dark, vivid purple. Relative luminance 0.058; OKLCH L 40.6% C 0.145 H 315.6°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#66287D
RGB	rgb(102, 40, 125)
HSL	hsl(284, 52%, 32%)
HSV	hsv(284, 68%, 49%)
CMYK	cmyk(18.4%, 68%, 0%, 51%)
CIE-LAB	lab(28.96, 41.76, -36.16)
CIE-LCH	lch(28.96, 55.24, 319.11°)
OKLab	oklab(40.58% 0.1036 -0.1016)
OKLCH	oklch(40.58% 0.145 315.6)
XYZ	xyz(9.9394, 5.8234, 19.9985)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 8.05

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66287D #3F7D28

analogous

#3C287D #66287D #7D2869

triadic

#66287D #7D6628 #287D66

tetradic

#66287D #7D3C28 #3F7D28 #28697D

square

#66287D #7D3C28 #3F7D28 #28697D

split-complementary

#66287D #697D28 #287D3C

monochromatic

#1A0A20 #40194F #66287D #8C37AB #AA56C9

Accessibility & contrast

On white

9.70

#66287D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#66287D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66287D

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66287D	#FFFFFF	#000000	##FFFFFF
##66287D	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024180

Deuteranopia (green-blind)

#27467B

Tritanopia (blue-blind)

#64384F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #66287d;
/* rgb */ color: rgb(102, 40, 125);
/* oklch */ color: oklch(40.6% 0.145 315.6);

Tailwind

colors: {
  custom: {
    50: '#9467a3',
    500: '#66287d',
    950: '#000000',
  },
}

SCSS

$custom: #66287d;
$custom-light: #9467a3;
$custom-dark: #000000;

JSON

{
  "hex": "#66287d",
  "rgb": {
    "r": 102,
    "g": 40,
    "b": 125
  },
  "hsl": {
    "h": 283.765,
    "s": 51.515,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40575,
    "c": 0.14508,
    "h": 315.6
  },
  "luminance": 0.05823
}

Semantic roles & 50–950 ramp

primary

#66287D

secondary

#6BAE53

accent

#DB4D73

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D060F

muted

#7E7A7F

Preview Lab

Preview with #66287D

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

Preview Lab → · Contrast checker → · Palette generator →