#663DB5#663DB5

#663DB5 is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.6% C 0.180 H 294.2°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#663DB5
RGB	rgb(102, 61, 181)
HSL	hsl(261, 50%, 47%)
HSV	hsv(261, 66%, 71%)
CMYK	cmyk(43.6%, 66.3%, 0%, 29%)
CIE-LAB	lab(36.93, 44.96, -57.42)
CIE-LCH	lch(36.93, 72.93, 308.06°)
OKLab	oklab(47.58% 0.0738 -0.1641)
OKLCH	oklch(47.58% 0.18 294.2)
XYZ	xyz(15.4865, 9.4981, 44.7245)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.02

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663DB5 #8CB53D

analogous

#3D50B5 #663DB5 #A23DB5

triadic

#663DB5 #B5663D #3DB566

tetradic

#663DB5 #B53D50 #8CB53D #3DB5A2

square

#663DB5 #B53D50 #8CB53D #3DB5A2

split-complementary

#663DB5 #B5A23D #50B53D

monochromatic

#321E59 #4C2E87 #663DB5 #8764CB #AB92DA

Accessibility & contrast

On white

7.24

#663DB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#663DB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663DB5

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DB5	#FFFFFF	#000000	##FFFFFF
##663DB5	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B9

Deuteranopia (green-blind)

#0055B3

Tritanopia (blue-blind)

#505A74

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663db5;
/* rgb */ color: rgb(102, 61, 181);
/* oklch */ color: oklch(47.6% 0.180 294.2);

Tailwind

colors: {
  custom: {
    50: '#9875cc',
    500: '#663db5',
    950: '#000000',
  },
}

SCSS

$custom: #663db5;
$custom-light: #9875cc;
$custom-dark: #000000;

JSON

{
  "hex": "#663db5",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 181
  },
  "hsl": {
    "h": 260.5,
    "s": 49.587,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47579,
    "c": 0.17991,
    "h": 294.2
  },
  "luminance": 0.09498
}

Semantic roles & 50–950 ramp

primary

#663DB5

secondary

#B1C588

accent

#D94FAA

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663DB5

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

Preview Lab → · Contrast checker → · Palette generator →