#66388C#66388C

#66388C is a dark, vivid violet. Relative luminance 0.075; OKLCH L 43.8% C 0.137 H 306.9°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#66388C
RGB	rgb(102, 56, 140)
HSL	hsl(273, 43%, 38%)
HSV	hsv(273, 60%, 55%)
CMYK	cmyk(27.1%, 60%, 0%, 45.1%)
CIE-LAB	lab(33.02, 36.91, -39.00)
CIE-LCH	lch(33.02, 53.70, 313.42°)
OKLab	oklab(43.83% 0.0825 -0.11)
OKLCH	oklch(43.83% 0.137 306.9)
XYZ	xyz(11.6263, 7.5467, 25.6500)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66388C #5E8C38

analogous

#3C388C #66388C #8C3888

triadic

#66388C #8C6638 #388C66

tetradic

#66388C #8C3C38 #5E8C38 #38888C

square

#66388C #8C3C38 #5E8C38 #38888C

split-complementary

#66388C #888C38 #388C3C

monochromatic

#261535 #462760 #66388C #864AB7 #A376C8

Accessibility & contrast

On white

8.37

#66388C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#66388C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66388C

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66388C	#FFFFFF	#000000	##FFFFFF
##66388C	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164C8F

Deuteranopia (green-blind)

#2A4E8A

Tritanopia (blue-blind)

#60485C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #66388c;
/* rgb */ color: rgb(102, 56, 140);
/* oklch */ color: oklch(43.8% 0.137 306.9);

Tailwind

colors: {
  custom: {
    50: '#9471ae',
    500: '#66388c',
    950: '#000000',
  },
}

SCSS

$custom: #66388c;
$custom-light: #9471ae;
$custom-dark: #000000;

JSON

{
  "hex": "#66388c",
  "rgb": {
    "r": 102,
    "g": 56,
    "b": 140
  },
  "hsl": {
    "h": 272.857,
    "s": 42.857,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43831,
    "c": 0.13746,
    "h": 306.9
  },
  "luminance": 0.07547
}

Semantic roles & 50–950 ramp

primary

#66388C

secondary

#8DB16F

accent

#D3558E

background

#F9F6FA

surface

#F2ECF4

border

#CCC7CE

text

#0D0810

muted

#7E7B7F

Preview Lab

Preview with #66388C

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

Preview Lab → · Contrast checker → · Palette generator →