#663BA1#663BA1

#663BA1 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.8% C 0.158 H 299.5°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#663BA1
RGB	rgb(102, 59, 161)
HSL	hsl(265, 46%, 43%)
HSV	hsv(265, 63%, 63%)
CMYK	cmyk(36.6%, 63.4%, 0%, 36.9%)
CIE-LAB	lab(35.05, 40.65, -48.52)
CIE-LCH	lch(35.05, 63.30, 309.96°)
OKLab	oklab(45.76% 0.078 -0.1379)
OKLCH	oklch(45.76% 0.158 299.5)
XYZ	xyz(13.4749, 8.5258, 34.6470)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.85

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BA1 #76A13B

analogous

#3B43A1 #663BA1 #993BA1

triadic

#663BA1 #A1663B #3BA166

tetradic

#663BA1 #A13B43 #76A13B #3BA199

square

#663BA1 #A13B43 #76A13B #3BA199

split-complementary

#663BA1 #A1993B #43A13B

monochromatic

#2D1A47 #4A2B74 #663BA1 #8458C2 #A584D2

Accessibility & contrast

On white

7.76

#663BA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#663BA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BA1

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BA1	#FFFFFF	#000000	##FFFFFF
##663BA1	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A4

Deuteranopia (green-blind)

#10529F

Tritanopia (blue-blind)

#595168

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #663ba1;
/* rgb */ color: rgb(102, 59, 161);
/* oklch */ color: oklch(45.8% 0.158 299.5);

Tailwind

colors: {
  custom: {
    50: '#9673bd',
    500: '#663ba1',
    950: '#000000',
  },
}

SCSS

$custom: #663ba1;
$custom-light: #9673bd;
$custom-dark: #000000;

JSON

{
  "hex": "#663ba1",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 161
  },
  "hsl": {
    "h": 265.294,
    "s": 46.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.45763,
    "c": 0.15843,
    "h": 299.5
  },
  "luminance": 0.08526
}

Semantic roles & 50–950 ramp

primary

#663BA1

secondary

#A1BC7C

accent

#D6529E

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663BA1

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

Preview Lab → · Contrast checker → · Palette generator →