#511D8D#511D8D
#511D8D is a dark, vivid violet. Relative luminance 0.046; OKLCH L 37.8% C 0.170 H 298.9°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #511D8D |
|---|---|
| RGB | rgb(81, 29, 141) |
| HSL | hsl(268, 66%, 33%) |
| HSV | hsv(268, 79%, 55%) |
| CMYK | cmyk(42.6%, 79.4%, 0%, 44.7%) |
| CIE-LAB | lab(25.42, 46.30, -52.06) |
| CIE-LCH | lch(25.42, 69.67, 311.64°) |
| OKLab | oklab(37.81% 0.0821 -0.1489) |
| OKLCH | oklch(37.81% 0.17 298.9) |
| XYZ | xyz(8.6392, 4.5510, 25.6174) |
| Luminance | 0.0455 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Indigo
#4B0082
ΔE00 4.01
Indigo (survey)
#380282
ΔE00 5.57
Rebeccapurple
#663399
ΔE00 5.95
Royal Purple (survey)
#4B006E
ΔE00 6.27
Indigo Blue
#3A18B1
ΔE00 6.37
Royal
#0C1793
ΔE00 8.14
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#511D8D #598D1D
analogous
#1D218D #511D8D #891D8D
triadic
#511D8D #8D511D #1D8D51
tetradic
#511D8D #8D1D21 #598D1D #1D8D89
square
#511D8D #8D1D21 #598D1D #1D8D89
split-complementary
#511D8D #8D891D #218D1D
monochromatic
#170827 #34135A #511D8D #6E27C0 #8D4BDA
Accessibility & contrast
On white
10.99
#511D8D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#511D8D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #511D8D
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##511D8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##511D8D | 1.00 | 10.99 | 1.91 | 10.99 |
| #FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003C90
Deuteranopia (green-blind)
#003B8B
Tritanopia (blue-blind)
#423B55
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #511d8d; /* rgb */ color: rgb(81, 29, 141); /* oklch */ color: oklch(37.8% 0.170 298.9);
Tailwind
colors: {
custom: {
50: '#8860af',
500: '#511d8d',
950: '#000000',
},
}SCSS
$custom: #511d8d; $custom-light: #8860af; $custom-dark: #000000;
JSON
{
"hex": "#511d8d",
"rgb": {
"r": 81,
"g": 29,
"b": 141
},
"hsl": {
"h": 267.857,
"s": 65.882,
"l": 33.333
},
"oklch": {
"l": 0.37807,
"c": 0.17006,
"h": 298.9
},
"luminance": 0.04551
}Semantic roles & 50–950 ramp
primary
#511D8D
secondary
#87BC4A
accent
#E93F9A
background
#F8F5FA
surface
#F0EAF5
border
#CBC6CF
text
#0C0510
muted
#7D797F