#661B88#661B88

#661B88 is a dark, vivid purple. Relative luminance 0.054; OKLCH L 40.0% C 0.172 H 312.4°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#661B88
RGB	rgb(102, 27, 136)
HSL	hsl(281, 67%, 32%)
HSV	hsv(281, 80%, 53%)
CMYK	cmyk(25%, 80.1%, 0%, 46.7%)
CIE-LAB	lab(27.81, 49.66, -44.92)
CIE-LCH	lch(27.81, 66.96, 317.87°)
OKLab	oklab(40% 0.1159 -0.1272)
OKLCH	oklch(40% 0.172 312.4)
XYZ	xyz(10.3145, 5.3865, 23.7841)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B88 #3D881B

analogous

#2F1B88 #661B88 #881B74

triadic

#661B88 #88661B #1B8866

tetradic

#661B88 #882F1B #3D881B #1B7488

square

#661B88 #882F1B #3D881B #1B7488

split-complementary

#661B88 #74881B #1B882F

monochromatic

#190722 #401155 #661B88 #8C25BB #AB44DA

Accessibility & contrast

On white

10.11

#661B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#661B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B88

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B88	#FFFFFF	#000000	##FFFFFF
##661B88	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8B

Deuteranopia (green-blind)

#074386

Tritanopia (blue-blind)

#623551

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #661b88;
/* rgb */ color: rgb(102, 27, 136);
/* oklch */ color: oklch(40.0% 0.172 312.4);

Tailwind

colors: {
  custom: {
    50: '#9661ab',
    500: '#661b88',
    950: '#000000',
  },
}

SCSS

$custom: #661b88;
$custom-light: #9661ab;
$custom-dark: #000000;

JSON

{
  "hex": "#661b88",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 281.284,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.40003,
    "c": 0.17207,
    "h": 312.4
  },
  "luminance": 0.05386
}

Semantic roles & 50–950 ramp

primary

#661B88

secondary

#69BB44

accent

#EA3E74

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #661B88

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

Preview Lab → · Contrast checker → · Palette generator →