#1B0B56#1B0B56
#1B0B56 is a very dark, vivid violet. Relative luminance 0.011; OKLCH L 23.9% C 0.123 H 281.6°. Best body text is #FFFFFF at 17.09:1 contrast (WCAG AA passes).
Color values
| HEX | #1B0B56 |
|---|---|
| RGB | rgb(27, 11, 86) |
| HSL | hsl(253, 77%, 19%) |
| HSV | hsv(253, 87%, 34%) |
| CMYK | cmyk(68.6%, 87.2%, 0%, 66.3%) |
| CIE-LAB | lab(10.14, 30.92, -41.75) |
| CIE-LCH | lch(10.14, 51.95, 306.53°) |
| OKLab | oklab(23.93% 0.0247 -0.1204) |
| OKLCH | oklch(23.93% 0.123 281.6) |
| XYZ | xyz(2.2509, 1.1441, 8.9045) |
| Luminance | 0.0114 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Dark Indigo
#1F0954
ΔE00 0.95
Dark Blue
#00035B
ΔE00 3.29
Night Blue
#040348
ΔE00 3.51
Darkblue (survey)
#030764
ΔE00 3.59
Dark Royal Blue
#02066F
ΔE00 5.00
Midnight Blue
#191970
ΔE00 5.18
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B0B56 #46560B
analogous
#0B2156 #1B0B56 #410B56
triadic
#1B0B56 #561B0B #0B561B
tetradic
#1B0B56 #560B21 #46560B #0B5641
square
#1B0B56 #560B21 #46560B #0B5641
split-complementary
#1B0B56 #56410B #21560B
monochromatic
#09031B #0A0420 #1B0B56 #2C128C #3D19C3
Accessibility & contrast
On white
17.09
#1B0B56 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.23
#1B0B56 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B0B56
17.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B0B56 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B0B56 | 1.00 | 17.09 | 1.23 | 17.09 |
| #FFFFFF | 17.09 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.23 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.09 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001E58
Deuteranopia (green-blind)
#001955
Tritanopia (blue-blind)
#002231
Achromatopsia (no color)
#1C1C1C
Design tokens & code
CSS
--color: #1b0b56; /* rgb */ color: rgb(27, 11, 86); /* oklch */ color: oklch(23.9% 0.123 281.6);
Tailwind
colors: {
custom: {
50: '#614d87',
500: '#1b0b56',
950: '#000000',
},
}SCSS
$custom: #1b0b56; $custom-light: #614d87; $custom-dark: #000000;
JSON
{
"hex": "#1b0b56",
"rgb": {
"r": 27,
"g": 11,
"b": 86
},
"hsl": {
"h": 252.8,
"s": 77.32,
"l": 19.02
},
"oklch": {
"l": 0.23929,
"c": 0.12295,
"h": 281.6
},
"luminance": 0.01144
}Semantic roles & 50–950 ramp
primary
#1B0B56
secondary
#7C912B
accent
#F434CB
background
#F6F4F8
surface
#EBE7EF
border
#C6C3CA
text
#06010B
muted
#7A777C