#0B132B
#3B487A
#5C7BA8
#6FFFE9
#BCD0E3Lavender Gray
#3A5A8CDusk
#053975Prussian Blue
#0C0700Obsidian
Bold Prussian Blue & Dusk is a vivid dark, monochromatic color palette tagged dark, cold, blue. All four colors sit within 8° of hue, so the scheme reads as one color explored across light and dark. These are bold, punchy colors that need generous white space around them. Warm and cool hues are mixed, which adds depth.
Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Lavender Gray | #BCD0E3 | rgb(188, 208, 227) | hsl(209, 41%, 81%) | oklch(84.9% 0.034 247) | |
| Dusk | #3A5A8C | rgb(58, 90, 140) | hsl(217, 41%, 39%) | oklch(46.7% 0.090 259) | |
| Prussian Blue | #053975 | rgb(5, 57, 117) | hsl(212, 92%, 24%) | oklch(35.2% 0.115 256) | |
| Obsidian | #0C0700 | rgb(12, 7, 0) | hsl(35, 100%, 2%) | oklch(13.2% 0.027 89) |
Why it works and how to use it
With 3 chromatic colors, Prussian Blue takes the lead while the rest support. Lightness runs from 2% to 81%. Well suited to dark-mode interfaces and gaming.
- Background: Lavender Gray (#BCD0E3) is the lightest color, so it belongs on large surfaces.
- Text: Obsidian (#0C0700) on #BCD0E3 gives 12.69:1, passing WCAG AAA.
- Primary: Prussian Blue (#053975) is the most saturated mid-tone; use it for buttons and links (7.18:1 against the background, fine for UI elements).
- Accent: Dusk (#3A5A8C) for highlights, badges and hover states.
2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Lavender Gray on Obsidian at 12.69:1.
Preview on a real UI see how the palette feels in context
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Design faster with Bold Prussian Blue & Dusk
A palette preview that turns four colors into a page, so you can judge hierarchy, contrast and mood before you commit.
Primary action SecondaryCard title
Card title
Card title
Roles are assigned by lightness.
Color blindness simulation
#BCD0E3
#3A5A8C
#053975
#0C0700
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#BCD0E3 on #0C0700 | Aa | 12.69:1 | AAA |
#BCD0E3 on #053975 | Aa | 7.18:1 | AAA |
#BCD0E3 on #3A5A8C | Aa | 4.39:1 | AA large only |
#3A5A8C on #0C0700 | Aa | 2.89:1 | Fail |
#053975 on #0C0700 | Aa | 1.77:1 | Fail |
#3A5A8C on #053975 | Aa | 1.63:1 | Fail |
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