#391CB3#391CB3
#391CB3 is a dark, highly saturated violet. Relative luminance 0.050; OKLCH L 39.2% C 0.214 H 278.7°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).
Color values
| HEX | #391CB3 |
|---|---|
| RGB | rgb(57, 28, 179) |
| HSL | hsl(252, 73%, 41%) |
| HSV | hsv(252, 84%, 70%) |
| CMYK | cmyk(68.2%, 84.4%, 0%, 29.8%) |
| CIE-LAB | lab(26.60, 54.25, -73.34) |
| CIE-LCH | lch(26.60, 91.23, 306.49°) |
| OKLab | oklab(39.19% 0.0323 -0.2118) |
| OKLCH | oklch(39.19% 0.214 278.7) |
| XYZ | xyz(10.2367, 4.9542, 43.0559) |
| Luminance | 0.0495 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 0.69
True Blue
#010FCC
ΔE00 3.72
Ultramarine
#2000B1
ΔE00 3.83
Violet Blue
#510AC9
ΔE00 4.11
Mediumblue
#0000CD
ΔE00 4.20
Ultramarine Blue
#1805DB
ΔE00 4.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#391CB3 #96B31C
analogous
#1C4AB3 #391CB3 #841CB3
triadic
#391CB3 #B3391C #1CB339
tetradic
#391CB3 #B31C4A #96B31C #1CB384
square
#391CB3 #B31C4A #96B31C #1CB384
split-complementary
#391CB3 #B3841C #4AB31C
monochromatic
#170B49 #28147E #391CB3 #502EDE #7C63E7
Accessibility & contrast
On white
10.55
#391CB3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#391CB3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #391CB3
10.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##391CB3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##391CB3 | 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)
#0044B7
Deuteranopia (green-blind)
#0039B0
Tritanopia (blue-blind)
#004D6A
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #391cb3; /* rgb */ color: rgb(57, 28, 179); /* oklch */ color: oklch(39.2% 0.214 278.7);
Tailwind
colors: {
custom: {
50: '#825fcb',
500: '#391cb3',
950: '#000000',
},
}SCSS
$custom: #391cb3; $custom-light: #825fcb; $custom-dark: #000000;
JSON
{
"hex": "#391cb3",
"rgb": {
"r": 57,
"g": 28,
"b": 179
},
"hsl": {
"h": 251.523,
"s": 72.947,
"l": 40.588
},
"oklch": {
"l": 0.39194,
"c": 0.21424,
"h": 278.7
},
"luminance": 0.04955
}Semantic roles & 50–950 ramp
primary
#391CB3
secondary
#B7CB5F
accent
#F038CC
background
#F8F5FC
surface
#F0EAF9
border
#CBC6D2
text
#0C0514
muted
#7D7982