#661B5A#661B5A

#661B5A is a dark, vivid purple. Relative luminance 0.043; OKLCH L 36.9% C 0.131 H 335.0°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#661B5A
RGB	rgb(102, 27, 90)
HSL	hsl(310, 58%, 25%)
HSV	hsv(310, 74%, 40%)
CMYK	cmyk(0%, 73.5%, 11.8%, 60%)
CIE-LAB	lab(24.79, 40.70, -20.22)
CIE-LCH	lch(24.79, 45.44, 333.58°)
OKLab	oklab(36.88% 0.1186 -0.0552)
OKLCH	oklch(36.88% 0.131 335)
XYZ	xyz(7.7170, 4.3475, 10.1036)
Luminance	0.0435 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B5A #1B6627

analogous

#4C1B66 #661B5A #661B34

triadic

#661B5A #5A661B #1B5A66

tetradic

#661B5A #664C1B #1B6627 #1B3466

square

#661B5A #664C1B #1B6627 #1B3466

split-complementary

#661B5A #34661B #1B664C

monochromatic

#180615 #360E2F #661B5A #962885 #C735AF

Accessibility & contrast

On white

11.23

#661B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#661B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B5A

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B5A	#FFFFFF	#000000	##FFFFFF
##661B5A	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B345C

Deuteranopia (green-blind)

#343F58

Tritanopia (blue-blind)

#6B2138

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #661b5a;
/* rgb */ color: rgb(102, 27, 90);
/* oklch */ color: oklch(36.9% 0.131 335.0);

Tailwind

colors: {
  custom: {
    50: '#945f89',
    500: '#661b5a',
    950: '#000000',
  },
}

SCSS

$custom: #661b5a;
$custom-light: #945f89;
$custom-dark: #000000;

JSON

{
  "hex": "#661b5a",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 90
  },
  "hsl": {
    "h": 309.6,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.36884,
    "c": 0.13081,
    "h": 335
  },
  "luminance": 0.04347
}

Semantic roles & 50–950 ramp

primary

#661B5A

secondary

#419B50

accent

#E15F46

background

#F9F5F8

surface

#F2EAF0

border

#CCC6CB

text

#0E050B

muted

#7E797C

Preview Lab

Preview with #661B5A

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

Preview Lab → · Contrast checker → · Palette generator →