#0F5C63
#2A8A8C
#9FD3CF
#F2F1EA
#0B3954Prussian Blue
#9E5A51Sienna
#BFD7EAPowder Blue
#FDFDFDWhite
Aqua Sienna & Prussian Blue is a complementary color palette tagged muted, white. Prussian Blue and Powder Blue 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 |
|---|---|---|---|---|---|
| Prussian Blue | #0B3954 | rgb(11, 57, 84) | hsl(202, 77%, 19%) | oklch(32.9% 0.067 240) | |
| Sienna | #9E5A51 | rgb(158, 90, 81) | hsl(7, 32%, 47%) | oklch(54.4% 0.091 28) | |
| Powder Blue | #BFD7EA | rgb(191, 215, 234) | hsl(207, 51%, 83%) | oklch(86.7% 0.037 242) | |
| White | #FDFDFD | rgb(253, 253, 253) | hsl(0, 0%, 99%) | oklch(99.4% 0.000 0) |
Why it works and how to use it
It works because the lightness range is wide (19% to 99%), which gives clear hierarchy between background, content and accents. Try it for websites, presentations and branding.
- Background: White (#FDFDFD) is the lightest color, so it belongs on large surfaces.
- Text: Prussian Blue (#0B3954) on #FDFDFD gives 11.95:1, passing WCAG AAA.
- Primary: Powder Blue (#BFD7EA) is the most saturated mid-tone; use it for buttons and links with a border or a darker shade for contrast.
- Accent: Sienna (#9E5A51) for highlights, badges and hover states.
3 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Prussian Blue on White at 11.95:1.
Preview on a real UI see how the palette feels in context
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Design faster with Aqua Sienna & Prussian Blue
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
#0B3954
#9E5A51
#BFD7EA
#FDFDFD
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#0B3954 on #FDFDFD | Aa | 11.95:1 | AAA |
#0B3954 on #BFD7EA | Aa | 8.18:1 | AAA |
#9E5A51 on #FDFDFD | Aa | 5.12:1 | AA |
#9E5A51 on #BFD7EA | Aa | 3.5:1 | AA large only |
#0B3954 on #9E5A51 | Aa | 2.34:1 | Fail |
#BFD7EA on #FDFDFD | Aa | 1.46:1 | Fail |
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