#661B9F#661B9F

#661B9F is a dark, vivid violet. Relative luminance 0.061; OKLCH L 41.9% C 0.194 H 304.5°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#661B9F
RGB	rgb(102, 27, 159)
HSL	hsl(274, 71%, 36%)
HSV	hsv(274, 83%, 62%)
CMYK	cmyk(35.8%, 83%, 0%, 37.6%)
CIE-LAB	lab(29.69, 54.77, -56.01)
CIE-LCH	lch(29.69, 78.34, 314.36°)
OKLab	oklab(41.91% 0.11 -0.1598)
OKLCH	oklch(41.91% 0.194 304.5)
XYZ	xyz(12.1280, 6.1119, 33.3350)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B9F #549F1B

analogous

#241B9F #661B9F #9F1B96

triadic

#661B9F #9F661B #1B9F66

tetradic

#661B9F #9F241B #549F1B #1B969F

square

#661B9F #9F241B #549F1B #1B969F

split-complementary

#661B9F #969F1B #1B9F24

monochromatic

#230936 #44126B #661B9F #8824D3 #A453E2

Accessibility & contrast

On white

9.45

#661B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#661B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B9F

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B9F	#FFFFFF	#000000	##FFFFFF
##661B9F	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A2

Deuteranopia (green-blind)

#00469D

Tritanopia (blue-blind)

#5B405F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #661b9f;
/* rgb */ color: rgb(102, 27, 159);
/* oklch */ color: oklch(41.9% 0.194 304.5);

Tailwind

colors: {
  custom: {
    50: '#9862bc',
    500: '#661b9f',
    950: '#000000',
  },
}

SCSS

$custom: #661b9f;
$custom-light: #9862bc;
$custom-dark: #000000;

JSON

{
  "hex": "#661b9f",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 159
  },
  "hsl": {
    "h": 274.091,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.41905,
    "c": 0.19395,
    "h": 304.5
  },
  "luminance": 0.06112
}

Semantic roles & 50–950 ramp

primary

#661B9F

secondary

#83C551

accent

#EE3A88

background

#F9F6FB

surface

#F2EBF7

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #661B9F

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

Preview Lab → · Contrast checker → · Palette generator →