#004C5C
#4C5E14
#2B7C4D
#3E837B
#9DE8D2Seafoam
#00B1B8Cadet
#2E7940Fern
#273400Evergreen
Deep Sea Cadet & Fern is a vivid dark, split color palette tagged ocean, cold, green. The hues span about 107°, enough contrast to create a focal point without the harshness of true complements. 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 |
|---|---|---|---|---|---|
| Seafoam | #9DE8D2 | rgb(157, 232, 210) | hsl(162, 62%, 76%) | oklch(87.6% 0.081 174) | |
| Cadet | #00B1B8 | rgb(0, 177, 184) | hsl(182, 100%, 36%) | oklch(69.1% 0.117 200) | |
| Fern | #2E7940 | rgb(46, 121, 64) | hsl(134, 45%, 33%) | oklch(51.4% 0.115 149) | |
| Evergreen | #273400 | rgb(39, 52, 0) | hsl(75, 100%, 10%) | oklch(30.2% 0.075 124) |
Why it works and how to use it
With 4 chromatic colors, Cadet takes the lead while the rest support. Lightness runs from 10% to 76%. Well suited to dark-mode interfaces and gaming.
- Background: Seafoam (#9DE8D2) is the lightest color, so it belongs on large surfaces.
- Text: Evergreen (#273400) on #9DE8D2 gives 9.45:1, passing WCAG AAA.
- Primary: Cadet (#00B1B8) is the most saturated mid-tone; use it for buttons and links with a border or a darker shade for contrast.
- Accent: Fern (#2E7940) for highlights, badges and hover states.
2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Seafoam on Evergreen at 9.45:1.
Preview on a real UI see how the palette feels in context
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Design faster with Deep Sea Cadet & Fern
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
#9DE8D2
#00B1B8
#2E7940
#273400
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#9DE8D2 on #273400 | Aa | 9.45:1 | AAA |
#00B1B8 on #273400 | Aa | 5.06:1 | AA |
#9DE8D2 on #2E7940 | Aa | 3.8:1 | AA large only |
#2E7940 on #273400 | Aa | 2.49:1 | Fail |
#00B1B8 on #2E7940 | Aa | 2.03:1 | Fail |
#9DE8D2 on #00B1B8 | Aa | 1.87:1 | Fail |
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