#661D8F#661D8F

#661D8F is a dark, vivid violet. Relative luminance 0.057; OKLCH L 40.7% C 0.177 H 309.6°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#661D8F
RGB	rgb(102, 29, 143)
HSL	hsl(278, 66%, 34%)
HSV	hsv(278, 80%, 56%)
CMYK	cmyk(28.7%, 79.7%, 0%, 43.9%)
CIE-LAB	lab(28.61, 50.46, -47.97)
CIE-LCH	lch(28.61, 69.62, 316.45°)
OKLab	oklab(40.74% 0.1127 -0.1361)
OKLCH	oklch(40.74% 0.177 309.6)
XYZ	xyz(10.8758, 5.6869, 26.5060)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D8F #468F1D

analogous

#2D1D8F #661D8F #8F1D7F

triadic

#661D8F #8F661D #1D8F66

tetradic

#661D8F #8F2D1D #468F1D #1D7F8F

square

#661D8F #8F2D1D #468F1D #1D7F8F

split-complementary

#661D8F #7F8F1D #1D8F2D

monochromatic

#1D0829 #42135C #661D8F #8A27C2 #A74CDB

Accessibility & contrast

On white

9.83

#661D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#661D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D8F

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D8F	#FFFFFF	#000000	##FFFFFF
##661D8F	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004192

Deuteranopia (green-blind)

#00448D

Tritanopia (blue-blind)

#603956

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661d8f;
/* rgb */ color: rgb(102, 29, 143);
/* oklch */ color: oklch(40.7% 0.177 309.6);

Tailwind

colors: {
  custom: {
    50: '#9662b1',
    500: '#661d8f',
    950: '#000000',
  },
}

SCSS

$custom: #661d8f;
$custom-light: #9662b1;
$custom-dark: #000000;

JSON

{
  "hex": "#661d8f",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 143
  },
  "hsl": {
    "h": 278.421,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40736,
    "c": 0.17672,
    "h": 309.6
  },
  "luminance": 0.05687
}

Semantic roles & 50–950 ramp

primary

#661D8F

secondary

#74BD4B

accent

#E93F7C

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #661D8F

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

Preview Lab → · Contrast checker → · Palette generator →