#663BCD#663BCD

#663BCD is a mid, highly saturated violet. Relative luminance 0.104; OKLCH L 49.3% C 0.210 H 289.9°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#663BCD
RGB	rgb(102, 59, 205)
HSL	hsl(258, 59%, 52%)
HSV	hsv(258, 71%, 80%)
CMYK	cmyk(50.2%, 71.2%, 0%, 19.6%)
CIE-LAB	lab(38.48, 52.62, -68.93)
CIE-LCH	lch(38.48, 86.72, 307.36°)
OKLab	oklab(49.29% 0.0717 -0.1979)
OKLCH	oklch(49.29% 0.21 289.9)
XYZ	xyz(18.0597, 10.3597, 58.7938)
Luminance	0.1036 (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

#663BCD #A2CD3B

analogous

#3B59CD #663BCD #AF3BCD

triadic

#663BCD #CD663B #3BCD66

tetradic

#663BCD #CD3B59 #A2CD3B #3BCDAF

square

#663BCD #CD3B59 #A2CD3B #3BCDAF

split-complementary

#663BCD #CDAF3B #59CD3B

monochromatic

#361D71 #4D29A2 #663BCD #8C6CD9 #B29DE6

Accessibility & contrast

On white

6.84

#663BCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#663BCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663BCD

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BCD	#FFFFFF	#000000	##FFFFFF
##663BCD	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD1

Deuteranopia (green-blind)

#0057CA

Tritanopia (blue-blind)

#426180

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #663bcd;
/* rgb */ color: rgb(102, 59, 205);
/* oklch */ color: oklch(49.3% 0.210 289.9);

Tailwind

colors: {
  custom: {
    50: '#9b75dd',
    500: '#663bcd',
    950: '#000000',
  },
}

SCSS

$custom: #663bcd;
$custom-light: #9b75dd;
$custom-dark: #000000;

JSON

{
  "hex": "#663bcd",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 205
  },
  "hsl": {
    "h": 257.671,
    "s": 59.35,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49291,
    "c": 0.21048,
    "h": 289.9
  },
  "luminance": 0.1036
}

Semantic roles & 50–950 ramp

primary

#663BCD

secondary

#BFD292

accent

#E345B4

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #663BCD

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

Preview Lab → · Contrast checker → · Palette generator →