#663E97#663E97

#663E97 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.5% C 0.142 H 301.8°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#663E97
RGB	rgb(102, 62, 151)
HSL	hsl(267, 42%, 42%)
HSV	hsv(267, 59%, 59%)
CMYK	cmyk(32.5%, 58.9%, 0%, 40.8%)
CIE-LAB	lab(35.01, 36.32, -42.54)
CIE-LCH	lch(35.01, 55.93, 310.49°)
OKLab	oklab(45.52% 0.0745 -0.1203)
OKLCH	oklch(45.52% 0.142 301.8)
XYZ	xyz(12.7867, 8.5044, 30.2400)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663E97 #6F973E

analogous

#3E4397 #663E97 #933E97

triadic

#663E97 #97663E #3E9766

tetradic

#663E97 #973E43 #6F973E #3E9793

square

#663E97 #973E43 #6F973E #3E9793

split-complementary

#663E97 #97933E #43973E

monochromatic

#2B1A40 #492C6C #663E97 #8458BA #A483CC

Accessibility & contrast

On white

7.78

#663E97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#663E97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663E97

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663E97	#FFFFFF	#000000	##FFFFFF
##663E97	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15529A

Deuteranopia (green-blind)

#265295

Tritanopia (blue-blind)

#5C5064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #663e97;
/* rgb */ color: rgb(102, 62, 151);
/* oklch */ color: oklch(45.5% 0.142 301.8);

Tailwind

colors: {
  custom: {
    50: '#9575b6',
    500: '#663e97',
    950: '#000000',
  },
}

SCSS

$custom: #663e97;
$custom-light: #9575b6;
$custom-dark: #000000;

JSON

{
  "hex": "#663e97",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 151
  },
  "hsl": {
    "h": 266.966,
    "s": 41.784,
    "l": 41.765
  },
  "oklch": {
    "l": 0.45516,
    "c": 0.14156,
    "h": 301.8
  },
  "luminance": 0.08504
}

Semantic roles & 50–950 ramp

primary

#663E97

secondary

#9BB67A

accent

#D2569A

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #663E97

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

Preview Lab → · Contrast checker → · Palette generator →