#0F5C63
#2A8A8C
#9FD3CF
#F2F1EA
#A8DADCPowder Blue
#457B9DSteel Blue
#1D3557Prussian Blue
#F1FAEESmoke
Sea Glass is a analogous color palette tagged muted, cold, white. The hues stay within 33° of each other on the color wheel, which is why the palette feels cohesive rather than busy. Neither washed out nor loud, it adapts to most contexts. The overall temperature is cool.
Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Powder Blue | #A8DADC | rgb(168, 218, 220) | hsl(182, 43%, 76%) | oklch(85.4% 0.052 199) | |
| Steel Blue | #457B9D | rgb(69, 123, 157) | hsl(203, 39%, 44%) | oklch(56.0% 0.078 238) | |
| Prussian Blue | #1D3557 | rgb(29, 53, 87) | hsl(215, 50%, 23%) | oklch(32.8% 0.068 257) | |
| Smoke | #F1FAEE | rgb(241, 250, 238) | hsl(105, 55%, 96%) | oklch(97.5% 0.018 138) |
Why it works and how to use it
It works because the lightness range is wide (23% to 96%), which gives clear hierarchy between background, content and accents. Try it for websites, presentations and branding.
- Background: Smoke (#F1FAEE) is the lightest color, so it belongs on large surfaces.
- Text: Prussian Blue (#1D3557) on #F1FAEE gives 11.56:1, passing WCAG AAA.
- Primary: Powder Blue (#A8DADC) is the most saturated mid-tone; use it for buttons and links with a border or a darker shade for contrast.
- Accent: Steel Blue (#457B9D) for highlights, badges and hover states.
2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Prussian Blue on Smoke at 11.56:1.
Preview on a real UI see how the palette feels in context
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Design faster with Sea Glass
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
#A8DADC
#457B9D
#1D3557
#F1FAEE
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#1D3557 on #F1FAEE | Aa | 11.56:1 | AAA |
#A8DADC on #1D3557 | Aa | 8.08:1 | AAA |
#457B9D on #F1FAEE | Aa | 4.3:1 | AA large only |
#A8DADC on #457B9D | Aa | 3:1 | AA large only |
#457B9D on #1D3557 | Aa | 2.69:1 | Fail |
#A8DADC on #F1FAEE | Aa | 1.43:1 | Fail |
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