#E8EEEE
#DD5600
#596564
#050D0D
#02151BObsidian
#2C515CCharcoal
#E75100Persimmon
#D6E3E7Ice
Concrete Persimmon & Charcoal is a complementary color palette tagged modern, dark, minimal. Charcoal and Ice sit nearly opposite on the color wheel, so the pairing has real energy; keep one as the accent. Neither washed out nor loud, it adapts to most contexts. Warm and cool hues are mixed, which adds depth.
Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Obsidian | #02151B | rgb(2, 21, 27) | hsl(194, 86%, 6%) | oklch(18.2% 0.029 220) | |
| Charcoal | #2C515C | rgb(44, 81, 92) | hsl(194, 35%, 27%) | oklch(41.2% 0.046 219) | |
| Persimmon | #E75100 | rgb(231, 81, 0) | hsl(21, 100%, 45%) | oklch(63.3% 0.198 40) | |
| Ice | #D6E3E7 | rgb(214, 227, 231) | hsl(194, 26%, 87%) | oklch(90.7% 0.015 218) |
Why it works and how to use it
The palette holds together thanks to its complementary hue relationship and a strong light-to-dark ladder (87% down to 6% lightness). A natural fit for websites, presentations and branding.
- Background: Ice (#D6E3E7) is the lightest color, so it belongs on large surfaces.
- Text: Obsidian (#02151B) on #D6E3E7 gives 14.21:1, passing WCAG AAA.
- Primary: Persimmon (#E75100) is the most saturated mid-tone; use it for buttons and links with a border or a darker shade for contrast.
- Accent: Charcoal (#2C515C) for highlights, badges and hover states.
3 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Obsidian on Ice at 14.21:1.
Preview on a real UI see how the palette feels in context
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Design faster with Concrete Persimmon & Charcoal
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
#02151B
#2C515C
#E75100
#D6E3E7
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#02151B on #D6E3E7 | Aa | 14.21:1 | AAA |
#2C515C on #D6E3E7 | Aa | 6.56:1 | AA |
#02151B on #E75100 | Aa | 4.95:1 | AA |
#E75100 on #D6E3E7 | Aa | 2.87:1 | Fail |
#2C515C on #E75100 | Aa | 2.29:1 | Fail |
#02151B on #2C515C | Aa | 2.17:1 | Fail |
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