Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Obsidian | #000814 | rgb(0, 8, 20) | hsl(216, 100%, 4%) | oklch(13.1% 0.034 247) | |
| Prussian Blue | #1B3A69 | rgb(27, 58, 105) | hsl(216, 59%, 26%) | oklch(35.2% 0.090 259) | |
| Lapis | #2A5A99 | rgb(42, 90, 153) | hsl(214, 57%, 38%) | oklch(46.7% 0.115 256) | |
| Amber | #FFC300 | rgb(255, 195, 0) | hsl(46, 100%, 50%) | oklch(84.8% 0.174 86) |
Why it works and how to use it
Deep Space is a vivid dark, complementary color palette tagged space, gold, dark. Near-complementary hues (about 170° apart) make this a high-contrast, attention-grabbing combination. Saturation runs high, so use the brightest color sparingly and let the others carry the surface area. Warm and cool hues are mixed, which adds depth.
With 3 chromatic colors, Prussian Blue takes the lead while the rest support. Lightness runs from 4% to 50%. Well suited to premium branding and packaging.
- Background: Amber (#FFC300) is the lightest color, so it belongs on large surfaces.
- Text: Obsidian (#000814) on #FFC300 gives 12.5:1, passing WCAG AAA.
- Primary: Prussian Blue (#1B3A69) is the most saturated mid-tone; use it for buttons and links (7.04:1 against the background, fine for UI elements).
- Accent: Lapis (#2A5A99) for highlights, badges and hover states.
2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Obsidian on Amber at 12.5:1.
Preview on a real UI see how the palette feels in context
Design faster with Deep Space
A palette preview that turns four colors into a page, so you can judge hierarchy, contrast and mood before you commit.
Primary action SecondaryColor blindness simulation
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Palette card

Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#000814 on #FFC300 | Aa | 12.5:1 | AAA |
#1B3A69 on #FFC300 | Aa | 7.04:1 | AAA |
#2A5A99 on #FFC300 | Aa | 4.32:1 | AA large only |
#000814 on #2A5A99 | Aa | 2.89:1 | Fail |
#000814 on #1B3A69 | Aa | 1.78:1 | Fail |
#1B3A69 on #2A5A99 | Aa | 1.63:1 | Fail |