#661B74#661B74

#661B74 is a dark, vivid purple. Relative luminance 0.049; OKLCH L 38.5% C 0.153 H 320.8°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#661B74
RGB	rgb(102, 27, 116)
HSL	hsl(291, 62%, 28%)
HSV	hsv(291, 77%, 45%)
CMYK	cmyk(12.1%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(26.36, 45.50, -34.62)
CIE-LCH	lch(26.36, 57.18, 322.73°)
OKLab	oklab(38.52% 0.1189 -0.097)
OKLCH	oklch(38.52% 0.153 320.8)
XYZ	xyz(9.0234, 4.8701, 16.9843)
Luminance	0.0487 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B74 #29741B

analogous

#391B74 #661B74 #741B55

triadic

#661B74 #74661B #1B7466

tetradic

#661B74 #74391B #29741B #1B5574

square

#661B74 #74391B #29741B #1B5574

split-complementary

#661B74 #55741B #1B7439

monochromatic

#160619 #3A0F42 #661B74 #9227A6 #B939D1

Accessibility & contrast

On white

10.64

#661B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#661B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B74

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B74	#FFFFFF	#000000	##FFFFFF
##661B74	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003976

Deuteranopia (green-blind)

#254172

Tritanopia (blue-blind)

#672C46

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #661b74;
/* rgb */ color: rgb(102, 27, 116);
/* oklch */ color: oklch(38.5% 0.153 320.8);

Tailwind

colors: {
  custom: {
    50: '#95609c',
    500: '#661b74',
    950: '#000000',
  },
}

SCSS

$custom: #661b74;
$custom-light: #95609c;
$custom-dark: #000000;

JSON

{
  "hex": "#661b74",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 290.562,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3852,
    "c": 0.15344,
    "h": 320.8
  },
  "luminance": 0.0487
}

Semantic roles & 50–950 ramp

primary

#661B74

secondary

#52A942

accent

#E5425C

background

#F9F5F9

surface

#F2EAF2

border

#CCC6CC

text

#0E050E

muted

#7E797E

Preview Lab

Preview with #661B74

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

Preview Lab → · Contrast checker → · Palette generator →