#661B8F#661B8F

#661B8F is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.6% C 0.179 H 309.8°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#661B8F
RGB	rgb(102, 27, 143)
HSL	hsl(279, 68%, 33%)
HSV	hsv(279, 81%, 56%)
CMYK	cmyk(28.7%, 81.1%, 0%, 43.9%)
CIE-LAB	lab(28.36, 51.19, -48.37)
CIE-LCH	lch(28.36, 70.43, 316.62°)
OKLab	oklab(40.56% 0.1144 -0.1373)
OKLCH	oklch(40.56% 0.179 309.8)
XYZ	xyz(10.8284, 5.5920, 26.4902)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B8F #448F1B

analogous

#2C1B8F #661B8F #8F1B7E

triadic

#661B8F #8F661B #1B8F66

tetradic

#661B8F #8F2C1B #448F1B #1B7E8F

square

#661B8F #8F2C1B #448F1B #1B7E8F

split-complementary

#661B8F #7E8F1B #1B8F2C

monochromatic

#1D0828 #41115C #661B8F #8B25C2 #A848DC

Accessibility & contrast

On white

9.91

#661B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#661B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B8F

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B8F	#FFFFFF	#000000	##FFFFFF
##661B8F	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004092

Deuteranopia (green-blind)

#00448D

Tritanopia (blue-blind)

#603955

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661b8f;
/* rgb */ color: rgb(102, 27, 143);
/* oklch */ color: oklch(40.6% 0.179 309.8);

Tailwind

colors: {
  custom: {
    50: '#9661b1',
    500: '#661b8f',
    950: '#000000',
  },
}

SCSS

$custom: #661b8f;
$custom-light: #9661b1;
$custom-dark: #000000;

JSON

{
  "hex": "#661b8f",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 143
  },
  "hsl": {
    "h": 278.793,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40561,
    "c": 0.1787,
    "h": 309.8
  },
  "luminance": 0.05592
}

Semantic roles & 50–950 ramp

primary

#661B8F

secondary

#72BE48

accent

#EB3D7A

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #661B8F

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

Preview Lab → · Contrast checker → · Palette generator →