#663187#663187

#663187 is a dark, vivid violet. Relative luminance 0.068; OKLCH L 42.5% C 0.143 H 310.1°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#663187
RGB	rgb(102, 49, 135)
HSL	hsl(277, 47%, 36%)
HSV	hsv(277, 64%, 53%)
CMYK	cmyk(24.4%, 63.7%, 0%, 47.1%)
CIE-LAB	lab(31.28, 39.50, -38.70)
CIE-LCH	lch(31.28, 55.30, 315.59°)
OKLab	oklab(42.46% 0.0918 -0.109)
OKLCH	oklch(42.46% 0.143 310.1)
XYZ	xyz(10.9501, 6.7709, 23.6470)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663187 #528731

analogous

#3B3187 #663187 #87317D

triadic

#663187 #876631 #318766

tetradic

#663187 #873B31 #528731 #317D87

square

#663187 #873B31 #528731 #317D87

split-complementary

#663187 #7D8731 #31873B

monochromatic

#22102D #44215A #663187 #8841B4 #A46AC9

Accessibility & contrast

On white

8.92

#663187 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#663187 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663187

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663187	#FFFFFF	#000000	##FFFFFF
##663187	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A478A

Deuteranopia (green-blind)

#274A85

Tritanopia (blue-blind)

#624257

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #663187;
/* rgb */ color: rgb(102, 49, 135);
/* oklch */ color: oklch(42.5% 0.143 310.1);

Tailwind

colors: {
  custom: {
    50: '#946caa',
    500: '#663187',
    950: '#000000',
  },
}

SCSS

$custom: #663187;
$custom-light: #946caa;
$custom-dark: #000000;

JSON

{
  "hex": "#663187",
  "rgb": {
    "r": 102,
    "g": 49,
    "b": 135
  },
  "hsl": {
    "h": 276.977,
    "s": 46.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.4246,
    "c": 0.14254,
    "h": 310.1
  },
  "luminance": 0.06771
}

Semantic roles & 50–950 ramp

primary

#663187

secondary

#81B064

accent

#D65184

background

#F9F6FA

surface

#F2ECF4

border

#CCC7CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #663187

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

Preview Lab → · Contrast checker → · Palette generator →