#661D8E#661D8E

#661D8E is a dark, vivid violet. Relative luminance 0.057; OKLCH L 40.7% C 0.176 H 310.0°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#661D8E
RGB	rgb(102, 29, 142)
HSL	hsl(279, 66%, 34%)
HSV	hsv(279, 80%, 56%)
CMYK	cmyk(28.2%, 79.6%, 0%, 44.3%)
CIE-LAB	lab(28.53, 50.24, -47.48)
CIE-LCH	lch(28.53, 69.13, 316.62°)
OKLab	oklab(40.66% 0.1129 -0.1347)
OKLCH	oklch(40.66% 0.176 310)
XYZ	xyz(10.8004, 5.6567, 26.1088)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D8E #458E1D

analogous

#2D1D8E #661D8E #8E1D7D

triadic

#661D8E #8E661D #1D8E66

tetradic

#661D8E #8E2D1D #458E1D #1D7D8E

square

#661D8E #8E2D1D #458E1D #1D7D8E

split-complementary

#661D8E #7D8E1D #1D8E2D

monochromatic

#1D0828 #41135B #661D8E #8B27C1 #A84BDA

Accessibility & contrast

On white

9.85

#661D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#661D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D8E

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D8E	#FFFFFF	#000000	##FFFFFF
##661D8E	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004091

Deuteranopia (green-blind)

#00448C

Tritanopia (blue-blind)

#603955

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661d8e;
/* rgb */ color: rgb(102, 29, 142);
/* oklch */ color: oklch(40.7% 0.176 310.0);

Tailwind

colors: {
  custom: {
    50: '#9662b0',
    500: '#661d8e',
    950: '#000000',
  },
}

SCSS

$custom: #661d8e;
$custom-light: #9662b0;
$custom-dark: #000000;

JSON

{
  "hex": "#661d8e",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 142
  },
  "hsl": {
    "h": 278.761,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.40656,
    "c": 0.17575,
    "h": 310
  },
  "luminance": 0.05657
}

Semantic roles & 50–950 ramp

primary

#661D8E

secondary

#73BD4A

accent

#E93F7B

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #661D8E

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

Preview Lab → · Contrast checker → · Palette generator →