#A630C1
#755EF5
#7ABCFF
#80E6FF
#002B66Marine
#005B8CLapis
#009CBCCadet
#78C7D6Sky Blue
Cool Cadet & Marine is a vivid dark, analogous color palette tagged gradient, cold, blue. The hues stay within 25° of each other on the color wheel, which is why the palette feels cohesive rather than busy. 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 |
|---|---|---|---|---|---|
| Marine | #002B66 | rgb(0, 43, 102) | hsl(215, 100%, 20%) | oklch(30.4% 0.113 258) | |
| Lapis | #005B8C | rgb(0, 91, 140) | hsl(201, 100%, 27%) | oklch(45.2% 0.108 242) | |
| Cadet | #009CBC | rgb(0, 156, 188) | hsl(190, 100%, 37%) | oklch(64.0% 0.116 219) | |
| Sky Blue | #78C7D6 | rgb(120, 199, 214) | hsl(190, 53%, 65%) | oklch(78.4% 0.080 211) |
Why it works and how to use it
The palette holds together thanks to its analogous hue relationship and a strong light-to-dark ladder (65% down to 20% lightness). A natural fit for dark-mode interfaces and gaming.
- Background: Sky Blue (#78C7D6) is the lightest color, so it belongs on large surfaces.
- Text: Marine (#002B66) on #78C7D6 gives 7.12:1, passing WCAG AAA.
- Primary: Lapis (#005B8C) is the most saturated mid-tone; use it for buttons and links (3.8:1 against the background, fine for UI elements).
- Accent: Cadet (#009CBC) for highlights, badges and hover states.
1 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Marine on Sky Blue at 7.12:1.
Preview on a real UI see how the palette feels in context
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Design faster with Cool Cadet & Marine
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
#002B66
#005B8C
#009CBC
#78C7D6
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#002B66 on #78C7D6 | Aa | 7.12:1 | AAA |
#002B66 on #009CBC | Aa | 4.22:1 | AA large only |
#005B8C on #78C7D6 | Aa | 3.8:1 | AA large only |
#005B8C on #009CBC | Aa | 2.25:1 | Fail |
#002B66 on #005B8C | Aa | 1.87:1 | Fail |
#009CBC on #78C7D6 | Aa | 1.69:1 | Fail |
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