#66299D#66299D

#66299D is a dark, vivid violet. Relative luminance 0.068; OKLCH L 43.1% C 0.178 H 303.7°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#66299D
RGB	rgb(102, 41, 157)
HSL	hsl(272, 59%, 39%)
HSV	hsv(272, 74%, 62%)
CMYK	cmyk(35%, 73.9%, 0%, 38.4%)
CIE-LAB	lab(31.45, 48.76, -51.93)
CIE-LCH	lch(31.45, 71.24, 313.20°)
OKLab	oklab(43.09% 0.0984 -0.1479)
OKLCH	oklch(43.09% 0.178 303.7)
XYZ	xyz(12.3568, 6.8450, 32.5620)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66299D #609D29

analogous

#2C299D #66299D #9D299A

triadic

#66299D #9D6629 #299D66

tetradic

#66299D #9D2C29 #609D29 #299A9D

square

#66299D #9D2C29 #609D29 #299A9D

split-complementary

#66299D #9A9D29 #299D2C

monochromatic

#27103C #461C6C #66299D #8538CB #A369D8

Accessibility & contrast

On white

8.86

#66299D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#66299D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66299D

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66299D	#FFFFFF	#000000	##FFFFFF
##66299D	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A0

Deuteranopia (green-blind)

#004A9B

Tritanopia (blue-blind)

#5B4561

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #66299d;
/* rgb */ color: rgb(102, 41, 157);
/* oklch */ color: oklch(43.1% 0.178 303.7);

Tailwind

colors: {
  custom: {
    50: '#9769bb',
    500: '#66299d',
    950: '#000000',
  },
}

SCSS

$custom: #66299d;
$custom-light: #9769bb;
$custom-dark: #000000;

JSON

{
  "hex": "#66299d",
  "rgb": {
    "r": 102,
    "g": 41,
    "b": 157
  },
  "hsl": {
    "h": 271.552,
    "s": 58.586,
    "l": 38.824
  },
  "oklch": {
    "l": 0.43086,
    "c": 0.17765,
    "h": 303.7
  },
  "luminance": 0.06845
}

Semantic roles & 50–950 ramp

primary

#66299D

secondary

#8FBE64

accent

#E24690

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0712

muted

#7E7A81

Preview Lab

Preview with #66299D

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

Preview Lab → · Contrast checker → · Palette generator →