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Cobalt Fern

Cobalt Fern
Cobalt Deep
#1E3A8A
rgb(30, 58, 138)
The anchor — a deep, confident cobalt blue
Azure Mist
#3B82C4
rgb(59, 130, 196)
Lighter sky blue, sunlight on the surface of the water
Verdant Fern
#4C9A5B
rgb(76, 154, 91)
Where blue gives way to green — the shoreline
Moss Whisper
#7FB069
rgb(127, 176, 105)
Soft, sunlit moss green
Sage Frost
#C5D9C0
rgb(197, 217, 192)
Pale sage — this palette's quiet neutral

Blue and green sit next to each other on the color wheel, and few pairings feel as naturally calm as a result. Cobalt Fern leans into that analogous harmony — Cobalt Deep and Azure Mist supply the water, Verdant Fern and Moss Whisper supply the shoreline, and Sage Frost gives the whole palette a place to rest.

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The combination works particularly well for outdoor, environmental, and wellness brands that want blue's trustworthiness without its coldness — Verdant Fern warms the palette just enough to feel alive rather than corporate. Use Cobalt Deep for primary UI actions or headlines, Sage Frost as a background, and the two mid-tones as supporting accents or data visualization pairs.

Web UI Preview

example.com
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