#663EA5#663EA5

#663EA5 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.5% C 0.159 H 297.8°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#663EA5
RGB	rgb(102, 62, 165)
HSL	hsl(263, 45%, 45%)
HSV	hsv(263, 62%, 65%)
CMYK	cmyk(38.2%, 62.4%, 0%, 35.3%)
CIE-LAB	lab(35.96, 40.05, -49.46)
CIE-LCH	lch(35.96, 63.64, 309.00°)
OKLab	oklab(46.51% 0.0741 -0.1407)
OKLCH	oklch(46.51% 0.159 297.8)
XYZ	xyz(13.9919, 8.9864, 36.5874)
Luminance	0.0899 (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

#663EA5 #7DA53E

analogous

#3E4AA5 #663EA5 #9A3EA5

triadic

#663EA5 #A5663E #3EA566

tetradic

#663EA5 #A53E4A #7DA53E #3EA59A

square

#663EA5 #A53E4A #7DA53E #3EA59A

split-complementary

#663EA5 #A59A3E #4AA53E

monochromatic

#2F1D4C #4B2D79 #663EA5 #855EC2 #A78AD3

Accessibility & contrast

On white

7.51

#663EA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#663EA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EA5

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EA5	#FFFFFF	#000000	##FFFFFF
##663EA5	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A8

Deuteranopia (green-blind)

#0E53A3

Tritanopia (blue-blind)

#57556B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663ea5;
/* rgb */ color: rgb(102, 62, 165);
/* oklch */ color: oklch(46.5% 0.159 297.8);

Tailwind

colors: {
  custom: {
    50: '#9675c0',
    500: '#663ea5',
    950: '#000000',
  },
}

SCSS

$custom: #663ea5;
$custom-light: #9675c0;
$custom-dark: #000000;

JSON

{
  "hex": "#663ea5",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 165
  },
  "hsl": {
    "h": 263.301,
    "s": 45.374,
    "l": 44.51
  },
  "oklch": {
    "l": 0.46509,
    "c": 0.15903,
    "h": 297.8
  },
  "luminance": 0.08987
}

Semantic roles & 50–950 ramp

primary

#663EA5

secondary

#A6BE81

accent

#D553A2

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663EA5

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

Preview Lab → · Contrast checker → · Palette generator →