#66178D#66178D
#66178D is a dark, vivid purple. Relative luminance 0.054; OKLCH L 40.1% C 0.181 H 310.8°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).
Color values
| HEX | #66178D |
|---|---|
| RGB | rgb(102, 23, 141) |
| HSL | hsl(280, 72%, 32%) |
| HSV | hsv(280, 84%, 55%) |
| CMYK | cmyk(27.7%, 83.7%, 0%, 44.7%) |
| CIE-LAB | lab(27.74, 52.09, -48.14) |
| CIE-LCH | lch(27.74, 70.93, 317.25°) |
| OKLab | oklab(40.08% 0.118 -0.1366) |
| OKLCH | oklch(40.08% 0.181 310.8) |
| XYZ | xyz(10.5927, 5.3609, 25.6709) |
| Luminance | 0.0536 (WCAG relative) |
| Temperature | cool |
| Family | purple |
Closest named colors
Purple (survey)
#7E1E9C
ΔE00 4.88
Rebeccapurple
#663399
ΔE00 5.32
Indigo
#4B0082
ΔE00 5.72
Purple
#800080
ΔE00 6.49
Royal Purple (survey)
#4B006E
ΔE00 6.83
Darkish Purple
#751973
ΔE00 7.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66178D #3E8D17
analogous
#2B178D #66178D #8D1779
triadic
#66178D #8D6617 #178D66
tetradic
#66178D #8D2B17 #3E8D17 #17798D
square
#66178D #8D2B17 #3E8D17 #17798D
split-complementary
#66178D #798D17 #178D2B
monochromatic
#1A0624 #400E58 #66178D #8C20C2 #AA3FE0
Accessibility & contrast
On white
10.13
#66178D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.07
#66178D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #66178D
10.13:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66178D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##66178D | 1.00 | 10.13 | 2.07 | 10.13 |
| #FFFFFF | 10.13 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.07 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.13 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003E90
Deuteranopia (green-blind)
#00438B
Tritanopia (blue-blind)
#613653
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #66178d; /* rgb */ color: rgb(102, 23, 141); /* oklch */ color: oklch(40.1% 0.181 310.8);
Tailwind
colors: {
custom: {
50: '#9660af',
500: '#66178d',
950: '#000000',
},
}SCSS
$custom: #66178d; $custom-light: #9660af; $custom-dark: #000000;
JSON
{
"hex": "#66178d",
"rgb": {
"r": 102,
"g": 23,
"b": 141
},
"hsl": {
"h": 280.169,
"s": 71.951,
"l": 32.157
},
"oklch": {
"l": 0.40078,
"c": 0.18052,
"h": 310.8
},
"luminance": 0.05361
}Semantic roles & 50–950 ramp
primary
#66178D
secondary
#6AC040
accent
#EF3975
background
#F9F6FA
surface
#F2EBF5
border
#CCC6CF
text
#0E0510
muted
#7E7A7F