#661C78#661C78
#661C78 is a dark, vivid purple. Relative luminance 0.050; OKLCH L 38.9% C 0.156 H 318.9°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).
Color values
| HEX | #661C78 |
|---|---|
| RGB | rgb(102, 28, 120) |
| HSL | hsl(288, 62%, 29%) |
| HSV | hsv(288, 77%, 47%) |
| CMYK | cmyk(15%, 76.7%, 0%, 52.9%) |
| CIE-LAB | lab(26.77, 45.93, -36.52) |
| CIE-LCH | lch(26.77, 58.68, 321.51°) |
| OKLab | oklab(38.9% 0.1175 -0.1025) |
| OKLCH | oklch(38.9% 0.156 318.9) |
| XYZ | xyz(9.2845, 5.0118, 18.2440) |
| Luminance | 0.0501 (WCAG relative) |
| Temperature | cool |
| Family | purple |
Closest named colors
Darkish Purple
#751973
ΔE00 3.90
Purple
#800080
ΔE00 5.01
Royal Purple (survey)
#4B006E
ΔE00 6.59
Purple (survey)
#7E1E9C
ΔE00 6.63
Darkmagenta
#8B008B
ΔE00 6.84
Rebeccapurple
#663399
ΔE00 7.35
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#661C78 #2E781C
analogous
#381C78 #661C78 #781C5C
triadic
#661C78 #78661C #1C7866
tetradic
#661C78 #78381C #2E781C #1C5C78
square
#661C78 #78381C #2E781C #1C5C78
split-complementary
#661C78 #5C781C #1C7838
monochromatic
#150619 #3C1046 #661C78 #9028AA #B53DD2
Accessibility & contrast
On white
10.49
#661C78 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.00
#661C78 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #661C78
10.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##661C78 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##661C78 | 1.00 | 10.49 | 2.00 | 10.49 |
| #FFFFFF | 10.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.00 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003A7B
Deuteranopia (green-blind)
#224276
Tritanopia (blue-blind)
#662F49
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #661c78; /* rgb */ color: rgb(102, 28, 120); /* oklch */ color: oklch(38.9% 0.156 318.9);
Tailwind
colors: {
custom: {
50: '#95619f',
500: '#661c78',
950: '#000000',
},
}SCSS
$custom: #661c78; $custom-light: #95619f; $custom-dark: #000000;
JSON
{
"hex": "#661c78",
"rgb": {
"r": 102,
"g": 28,
"b": 120
},
"hsl": {
"h": 288.261,
"s": 62.162,
"l": 29.02
},
"oklch": {
"l": 0.38897,
"c": 0.15596,
"h": 318.9
},
"luminance": 0.05011
}Semantic roles & 50–950 ramp
primary
#661C78
secondary
#58AC44
accent
#E54362
background
#F9F6F9
surface
#F2EBF2
border
#CCC6CC
text
#0E050E
muted
#7E7A7E