#1B0A43#1B0A43
#1B0A43 is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.6% C 0.099 H 288.9°. Best body text is #FFFFFF at 17.93:1 contrast (WCAG AA passes).
Color values
| HEX | #1B0A43 |
|---|---|
| RGB | rgb(27, 10, 67) |
| HSL | hsl(258, 74%, 15%) |
| HSV | hsv(258, 85%, 26%) |
| CMYK | cmyk(59.7%, 85.1%, 0%, 73.7%) |
| CIE-LAB | lab(7.73, 25.16, -32.53) |
| CIE-LCH | lch(7.73, 41.13, 307.72°) |
| OKLab | oklab(21.58% 0.032 -0.0936) |
| OKLCH | oklch(21.58% 0.099 288.9) |
| XYZ | xyz(1.5734, 0.8553, 5.3913) |
| Luminance | 0.0086 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Dark Indigo
#1F0954
ΔE00 3.63
Night Blue
#040348
ΔE00 3.99
Navy Blue (survey)
#001146
ΔE00 5.50
Midnight Purple
#280137
ΔE00 5.55
Midnight Blue (survey)
#020035
ΔE00 5.65
Dark Navy
#000435
ΔE00 6.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B0A43 #32430A
analogous
#0A1543 #1B0A43 #380A43
triadic
#1B0A43 #431B0A #0A431B
tetradic
#1B0A43 #430A15 #32430A #0A4338
square
#1B0A43 #430A15 #32430A #0A4338
split-complementary
#1B0A43 #43380A #15430A
monochromatic
#0B041B #0B041B #1B0A43 #301278 #461AAE
Accessibility & contrast
On white
17.93
#1B0A43 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.17
#1B0A43 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B0A43
17.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B0A43 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B0A43 | 1.00 | 17.93 | 1.17 | 17.93 |
| #FFFFFF | 17.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.17 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001845
Deuteranopia (green-blind)
#001642
Tritanopia (blue-blind)
#0B1A26
Achromatopsia (no color)
#171717
Design tokens & code
CSS
--color: #1b0a43; /* rgb */ color: rgb(27, 10, 67); /* oklch */ color: oklch(21.6% 0.099 288.9);
Tailwind
colors: {
custom: {
50: '#5d4b78',
500: '#1b0a43',
950: '#000000',
},
}SCSS
$custom: #1b0a43; $custom-light: #5d4b78; $custom-dark: #000000;
JSON
{
"hex": "#1b0a43",
"rgb": {
"r": 27,
"g": 10,
"b": 67
},
"hsl": {
"h": 257.895,
"s": 74.026,
"l": 15.098
},
"oklch": {
"l": 0.21579,
"c": 0.09886,
"h": 288.9
},
"luminance": 0.00855
}Semantic roles & 50–950 ramp
primary
#1B0A43
secondary
#668029
accent
#F137B9
background
#F5F4F7
surface
#E9E7ED
border
#C5C3C8
text
#050109
muted
#79777B