#023E8A
#0077B6
#00B4D8
#90E0EF
#00486ACharcoal
#007D9CCerulean
#00B8BFCyan
#90E3DEPowder Blue
Lagoon Cyan & Cerulean is a vivid monochromatic color palette tagged gradient, ocean, cold. All four colors sit within 23° 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. The overall temperature is cool.
Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Charcoal | #00486A | rgb(0, 72, 106) | hsl(199, 100%, 21%) | oklch(38.1% 0.084 238) | |
| Cerulean | #007D9C | rgb(0, 125, 156) | hsl(192, 100%, 31%) | oklch(54.7% 0.102 223) | |
| Cyan | #00B8BF | rgb(0, 184, 191) | hsl(182, 100%, 37%) | oklch(71.1% 0.121 200) | |
| Powder Blue | #90E3DE | rgb(144, 227, 222) | hsl(176, 60%, 73%) | oklch(86.1% 0.081 191) |
Why it works and how to use it
With 4 chromatic colors, Cerulean takes the lead while the rest support. Lightness runs from 21% to 73%. Well suited to websites, presentations and branding.
- Background: Powder Blue (#90E3DE) is the lightest color, so it belongs on large surfaces.
- Text: Charcoal (#00486A) on #90E3DE gives 6.66:1, passing WCAG AA.
- Primary: Cerulean (#007D9C) is the most saturated mid-tone; use it for buttons and links (3.22:1 against the background, fine for UI elements).
- Accent: Cyan (#00B8BF) for highlights, badges and hover states.
1 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Charcoal on Powder Blue at 6.66:1.
Preview on a real UI see how the palette feels in context
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Design faster with Lagoon Cyan & Cerulean
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
#00486A
#007D9C
#00B8BF
#90E3DE
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#00486A on #90E3DE | Aa | 6.66:1 | AA |
#00486A on #00B8BF | Aa | 4.03:1 | AA large only |
#007D9C on #90E3DE | Aa | 3.22:1 | AA large only |
#00486A on #007D9C | Aa | 2.07:1 | Fail |
#007D9C on #00B8BF | Aa | 1.95:1 | Fail |
#00B8BF on #90E3DE | Aa | 1.65:1 | Fail |
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