#581C91#581C91
#581C91 is a dark, vivid violet. Relative luminance 0.050; OKLCH L 38.9% C 0.176 H 301.6°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).
Color values
| HEX | #581C91 |
|---|---|
| RGB | rgb(88, 28, 145) |
| HSL | hsl(271, 68%, 34%) |
| HSV | hsv(271, 81%, 57%) |
| CMYK | cmyk(39.3%, 80.7%, 0%, 43.1%) |
| CIE-LAB | lab(26.59, 48.86, -52.58) |
| CIE-LCH | lch(26.59, 71.78, 312.90°) |
| OKLab | oklab(38.95% 0.0925 -0.1502) |
| OKLCH | oklch(38.95% 0.176 301.6) |
| XYZ | xyz(9.5493, 4.9495, 27.2348) |
| Luminance | 0.0495 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Indigo
#4B0082
ΔE00 4.50
Rebeccapurple
#663399
ΔE00 5.26
Indigo (survey)
#380282
ΔE00 6.47
Indigo Blue
#3A18B1
ΔE00 6.64
Royal Purple (survey)
#4B006E
ΔE00 6.71
Purple (survey)
#7E1E9C
ΔE00 7.09
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#581C91 #55911C
analogous
#1D1C91 #581C91 #911C90
triadic
#581C91 #91581C #1C9158
tetradic
#581C91 #911D1C #55911C #1C9091
square
#581C91 #911D1C #55911C #1C9091
split-complementary
#581C91 #90911C #1C911D
monochromatic
#1A082A #39125E #581C91 #7726C4 #964BDC
Accessibility & contrast
On white
10.55
#581C91 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#581C91 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #581C91
10.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##581C91 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##581C91 | 1.00 | 10.55 | 1.99 | 10.55 |
| #FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003E94
Deuteranopia (green-blind)
#003E8F
Tritanopia (blue-blind)
#4B3C57
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #581c91; /* rgb */ color: rgb(88, 28, 145); /* oklch */ color: oklch(38.9% 0.176 301.6);
Tailwind
colors: {
custom: {
50: '#8d60b2',
500: '#581c91',
950: '#000000',
},
}SCSS
$custom: #581c91; $custom-light: #8d60b2; $custom-dark: #000000;
JSON
{
"hex": "#581c91",
"rgb": {
"r": 88,
"g": 28,
"b": 145
},
"hsl": {
"h": 270.769,
"s": 67.63,
"l": 33.922
},
"oklch": {
"l": 0.38946,
"c": 0.17639,
"h": 301.6
},
"luminance": 0.0495
}Semantic roles & 50–950 ramp
primary
#581C91
secondary
#83BE4A
accent
#EB3D92
background
#F9F5FB
surface
#F1EAF6
border
#CBC6D0
text
#0D0511
muted
#7E7980