#663E7A#663E7A

#663E7A is a dark, moderate purple. Relative luminance 0.077; OKLCH L 43.7% C 0.105 H 313.5°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#663E7A
RGB	rgb(102, 62, 122)
HSL	hsl(280, 33%, 36%)
HSV	hsv(280, 49%, 48%)
CMYK	cmyk(16.4%, 49.2%, 0%, 52.2%)
CIE-LAB	lab(33.30, 29.05, -27.40)
CIE-LCH	lch(33.30, 39.93, 316.67°)
OKLab	oklab(43.7% 0.0723 -0.0762)
OKLCH	oklch(43.7% 0.105 313.5)
XYZ	xyz(10.7144, 7.6754, 19.3257)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663E7A #527A3E

analogous

#483E7A #663E7A #7A3E70

triadic

#663E7A #7A663E #3E7A66

tetradic

#663E7A #7A483E #527A3E #3E707A

square

#663E7A #7A483E #527A3E #3E707A

split-complementary

#663E7A #707A3E #3E7A48

monochromatic

#221529 #442951 #663E7A #8853A3 #A478BA

Accessibility & contrast

On white

8.28

#663E7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#663E7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663E7A

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663E7A	#FFFFFF	#000000	##FFFFFF
##663E7A	1.00	8.28	2.53	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314C7C

Deuteranopia (green-blind)

#3C4F78

Tritanopia (blue-blind)

#644756

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #663e7a;
/* rgb */ color: rgb(102, 62, 122);
/* oklch */ color: oklch(43.7% 0.105 313.5);

Tailwind

colors: {
  custom: {
    50: '#9374a1',
    500: '#663e7a',
    950: '#000000',
  },
}

SCSS

$custom: #663e7a;
$custom-light: #9374a1;
$custom-dark: #000000;

JSON

{
  "hex": "#663e7a",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 122
  },
  "hsl": {
    "h": 280,
    "s": 32.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.43695,
    "c": 0.10502,
    "h": 313.5
  },
  "luminance": 0.07675
}

Semantic roles & 50–950 ramp

primary

#663E7A

secondary

#81A56F

accent

#C95F82

background

#F9F7F9

surface

#F1EDF2

border

#CBC8CC

text

#0D080F

muted

#7E7B7E

Preview Lab

Preview with #663E7A

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

Preview Lab → · Contrast checker → · Palette generator →