#663FAF#663FAF

#663FAF is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.4% C 0.170 H 295.1°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#663FAF
RGB	rgb(102, 63, 175)
HSL	hsl(261, 47%, 47%)
HSV	hsv(261, 64%, 69%)
CMYK	cmyk(41.7%, 64%, 0%, 31.4%)
CIE-LAB	lab(36.88, 42.22, -53.93)
CIE-LCH	lch(36.88, 68.49, 308.05°)
OKLab	oklab(47.41% 0.0722 -0.1538)
OKLCH	oklch(47.41% 0.17 295.1)
XYZ	xyz(14.9928, 9.4746, 41.5880)
Luminance	0.0948 (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

#663FAF #88AF3F

analogous

#3F50AF #663FAF #9E3FAF

triadic

#663FAF #AF663F #3FAF66

tetradic

#663FAF #AF3F50 #88AF3F #3FAF9E

square

#663FAF #AF3F50 #88AF3F #3FAF9E

split-complementary

#663FAF #AF9E3F #50AF3F

monochromatic

#321F55 #4C2F82 #663FAF #8764C7 #AA91D7

Accessibility & contrast

On white

7.25

#663FAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#663FAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FAF

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FAF	#FFFFFF	#000000	##FFFFFF
##663FAF	1.00	7.25	2.89	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B3

Deuteranopia (green-blind)

#0055AD

Tritanopia (blue-blind)

#535971

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663faf;
/* rgb */ color: rgb(102, 63, 175);
/* oklch */ color: oklch(47.4% 0.170 295.1);

Tailwind

colors: {
  custom: {
    50: '#9776c8',
    500: '#663faf',
    950: '#000000',
  },
}

SCSS

$custom: #663faf;
$custom-light: #9776c8;
$custom-dark: #000000;

JSON

{
  "hex": "#663faf",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 175
  },
  "hsl": {
    "h": 260.893,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47407,
    "c": 0.16996,
    "h": 295.1
  },
  "luminance": 0.09475
}

Semantic roles & 50–950 ramp

primary

#663FAF

secondary

#AEC387

accent

#D751A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #663FAF

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

Preview Lab → · Contrast checker → · Palette generator →