#661D8A#661D8A

#661D8A is a dark, vivid purple. Relative luminance 0.055; OKLCH L 40.3% C 0.172 H 311.4°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#661D8A
RGB	rgb(102, 29, 138)
HSL	hsl(280, 65%, 33%)
HSV	hsv(280, 79%, 54%)
CMYK	cmyk(26.1%, 79%, 0%, 45.9%)
CIE-LAB	lab(28.22, 49.36, -45.50)
CIE-LCH	lch(28.22, 67.13, 317.33°)
OKLab	oklab(40.34% 0.1138 -0.1289)
OKLCH	oklch(40.34% 0.172 311.4)
XYZ	xyz(10.5054, 5.5388, 24.5555)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D8A #418A1D

analogous

#2F1D8A #661D8A #8A1D78

triadic

#661D8A #8A661D #1D8A66

tetradic

#661D8A #8A2F1D #418A1D #1D788A

square

#661D8A #8A2F1D #418A1D #1D788A

split-complementary

#661D8A #788A1D #1D8A2F

monochromatic

#1B0825 #411257 #661D8A #8B28BD #A949D9

Accessibility & contrast

On white

9.96

#661D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#661D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D8A

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D8A	#FFFFFF	#000000	##FFFFFF
##661D8A	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8D

Deuteranopia (green-blind)

#054488

Tritanopia (blue-blind)

#613753

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661d8a;
/* rgb */ color: rgb(102, 29, 138);
/* oklch */ color: oklch(40.3% 0.172 311.4);

Tailwind

colors: {
  custom: {
    50: '#9662ad',
    500: '#661d8a',
    950: '#000000',
  },
}

SCSS

$custom: #661d8a;
$custom-light: #9662ad;
$custom-dark: #000000;

JSON

{
  "hex": "#661d8a",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 138
  },
  "hsl": {
    "h": 280.183,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40339,
    "c": 0.17191,
    "h": 311.4
  },
  "luminance": 0.05538
}

Semantic roles & 50–950 ramp

primary

#661D8A

secondary

#6EBB48

accent

#E84077

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #661D8A

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

Preview Lab → · Contrast checker → · Palette generator →