#661D8C#661D8C

#661D8C is a dark, vivid violet. Relative luminance 0.056; OKLCH L 40.5% C 0.174 H 310.7°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#661D8C
RGB	rgb(102, 29, 140)
HSL	hsl(279, 66%, 33%)
HSV	hsv(279, 79%, 55%)
CMYK	cmyk(27.1%, 79.3%, 0%, 45.1%)
CIE-LAB	lab(28.37, 49.80, -46.49)
CIE-LCH	lch(28.37, 68.13, 316.97°)
OKLab	oklab(40.5% 0.1133 -0.1318)
OKLCH	oklch(40.5% 0.174 310.7)
XYZ	xyz(10.6516, 5.5972, 25.3251)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.18

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D8C #438C1D

analogous

#2E1D8C #661D8C #8C1D7A

triadic

#661D8C #8C661D #1D8C66

tetradic

#661D8C #8C2E1D #438C1D #1D7A8C

square

#661D8C #8C2E1D #438C1D #1D7A8C

split-complementary

#661D8C #7A8C1D #1D8C2E

monochromatic

#1C0827 #411259 #661D8C #8B28BF #A84AD9

Accessibility & contrast

On white

9.91

#661D8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#661D8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D8C

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D8C	#FFFFFF	#000000	##FFFFFF
##661D8C	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408F

Deuteranopia (green-blind)

#00448A

Tritanopia (blue-blind)

#613854

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #661d8c;
/* rgb */ color: rgb(102, 29, 140);
/* oklch */ color: oklch(40.5% 0.174 310.7);

Tailwind

colors: {
  custom: {
    50: '#9662ae',
    500: '#661d8c',
    950: '#000000',
  },
}

SCSS

$custom: #661d8c;
$custom-light: #9662ae;
$custom-dark: #000000;

JSON

{
  "hex": "#661d8c",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 140
  },
  "hsl": {
    "h": 279.459,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.40497,
    "c": 0.17382,
    "h": 310.7
  },
  "luminance": 0.05597
}

Semantic roles & 50–950 ramp

primary

#661D8C

secondary

#70BC49

accent

#E93F79

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #661D8C

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

Preview Lab → · Contrast checker → · Palette generator →