#663BA3#663BA3

#663BA3 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.9% C 0.161 H 298.9°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#663BA3
RGB	rgb(102, 59, 163)
HSL	hsl(265, 47%, 44%)
HSV	hsv(265, 64%, 64%)
CMYK	cmyk(37.4%, 63.8%, 0%, 36.1%)
CIE-LAB	lab(35.20, 41.18, -49.49)
CIE-LCH	lch(35.20, 64.38, 309.76°)
OKLab	oklab(45.91% 0.0778 -0.1408)
OKLCH	oklch(45.91% 0.161 298.9)
XYZ	xyz(13.6527, 8.5969, 35.5833)
Luminance	0.0860 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BA3 #78A33B

analogous

#3B44A3 #663BA3 #9A3BA3

triadic

#663BA3 #A3663B #3BA366

tetradic

#663BA3 #A33B44 #78A33B #3BA39A

square

#663BA3 #A33B44 #78A33B #3BA39A

split-complementary

#663BA3 #A39A3B #44A33B

monochromatic

#2E1A49 #4A2B76 #663BA3 #8458C3 #A585D3

Accessibility & contrast

On white

7.72

#663BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#663BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BA3

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BA3	#FFFFFF	#000000	##FFFFFF
##663BA3	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A6

Deuteranopia (green-blind)

#0A52A1

Tritanopia (blue-blind)

#585269

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #663ba3;
/* rgb */ color: rgb(102, 59, 163);
/* oklch */ color: oklch(45.9% 0.161 298.9);

Tailwind

colors: {
  custom: {
    50: '#9673bf',
    500: '#663ba3',
    950: '#000000',
  },
}

SCSS

$custom: #663ba3;
$custom-light: #9673bf;
$custom-dark: #000000;

JSON

{
  "hex": "#663ba3",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 163
  },
  "hsl": {
    "h": 264.808,
    "s": 46.847,
    "l": 43.529
  },
  "oklch": {
    "l": 0.45911,
    "c": 0.16087,
    "h": 298.9
  },
  "luminance": 0.08597
}

Semantic roles & 50–950 ramp

primary

#663BA3

secondary

#A2BD7D

accent

#D6519F

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663BA3

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

Preview Lab → · Contrast checker → · Palette generator →