#663DBB#663DBB

#663DBB is a mid, vivid violet. Relative luminance 0.098; OKLCH L 48.1% C 0.187 H 293.0°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#663DBB
RGB	rgb(102, 61, 187)
HSL	hsl(260, 51%, 49%)
HSV	hsv(260, 67%, 73%)
CMYK	cmyk(45.5%, 67.4%, 0%, 26.7%)
CIE-LAB	lab(37.39, 46.61, -60.20)
CIE-LCH	lch(37.39, 76.14, 307.75°)
OKLab	oklab(48.06% 0.073 -0.1723)
OKLCH	oklch(48.06% 0.187 293)
XYZ	xyz(16.1154, 9.7496, 48.0368)
Luminance	0.0975 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.21

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663DBB #92BB3D

analogous

#3D53BB #663DBB #A53DBB

triadic

#663DBB #BB663D #3DBB66

tetradic

#663DBB #BB3D53 #92BB3D #3DBBA5

square

#663DBB #BB3D53 #92BB3D #3DBBA5

split-complementary

#663DBB #BBA53D #53BB3D

monochromatic

#341F5F #4D2E8D #663DBB #8968CE #AD96DD

Accessibility & contrast

On white

7.12

#663DBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#663DBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663DBB

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DBB	#FFFFFF	#000000	##FFFFFF
##663DBB	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#4D5C77

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663dbb;
/* rgb */ color: rgb(102, 61, 187);
/* oklch */ color: oklch(48.1% 0.187 293.0);

Tailwind

colors: {
  custom: {
    50: '#9975d0',
    500: '#663dbb',
    950: '#000000',
  },
}

SCSS

$custom: #663dbb;
$custom-light: #9975d0;
$custom-dark: #000000;

JSON

{
  "hex": "#663dbb",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 187
  },
  "hsl": {
    "h": 259.524,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48057,
    "c": 0.1871,
    "h": 293
  },
  "luminance": 0.0975
}

Semantic roles & 50–950 ramp

primary

#663DBB

secondary

#B4C88C

accent

#DA4EAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0F0814

muted

#7E7B82

Preview Lab

Preview with #663DBB

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

Preview Lab → · Contrast checker → · Palette generator →