Daniel Smith Undersea Green Review: Is It Worth It?

Some watercolor paints quietly sit on your palette waiting to be noticed.
Undersea Green does not.

Daniel Smith’s Undersea Green is one of those legendary two-pigment colors that artists fall in love with, swear by, and then quietly panic when they run low. It’s dramatic, granulating, separating, and wildly useful across florals, landscapes, seascapes, and anything that needs natural greens without the artificial neon look.

It’s basically the watercolor version of “effortlessly cool.”

What Undersea Green Really Looks Like on Paper

Undersea Green is made from a fascinating two-pigment mix:

• PB29 — Ultramarine Blue
• PY150 — Nickel Azo Yellow

Translation:
Blue sinks. Yellow floats. Texture appears. Magic happens.

On paper, you’ll see:

• Deep mossy greens at full strength
• Earthy, brown-green granulation settling into the texture
• Cool blue undertones blooming through wet areas
• Soft olive-gold hues in diluted washes

It can look like seaweed, forest shadow, moss, weathered stone, or muted botanical foliage — all without you having to mix four colors and say a prayer.

Why Undersea Green Is So Useful

Undersea Green succeeds because it does several things extremely well:

✔ Granulates heavily — sedimentary texture for landscapes
✔ Separates beautifully into dark greens + blue shadows
✔ Feels natural — nothing artificial or “cartoon green”
✔ Perfect value range from soft olive to deep forest
✔ Ideal for wet-into-wet work
✔ A powerful dark without looking dead

This is one of those paints you reach for when you want believable greens without forcing them into existence.

Best Uses (Where Undersea Green Absolutely Shines)

Undersea Green belongs in your palette if you paint:

• Botanical subjects – leaves, stems, shadowed petals
• Forests & tree lines – pine, cedar, and distant foliage
• Seascapes & river scenes – underwater tones, seaweed, rock pools
• Rocks & textured earth – granulation mimics real stone
• Travel sketching – easy natural greens on location
• Underpainting for moody natural areas

If you paint anything outdoors, this color is basically cheating in a tube.

Original painting and fine art prints available HERE

Paper Matters (Granulation Needs Room)

Undersea Green gives you the best results on paper with tooth:

Best:

• 100% cotton cold press or rough — full granulation + separation

Good:

• Hot press — still beautiful, but much smoother

Less impressive:

• Cheap cellulose or slick-coated papers

This color loves water, gravity, and textured paper. Let it live its best life.

Technique Tips (For Maximum Wow Factor)

• Start with a juicy wet surface — granulation loves water
• Drop Undersea Green into damp areas and watch it travel
• Tilt the board to push pigments naturally
• Avoid overworking — granulation dies instantly under a scrubby brush
• Layer once dry for incredible depth
• Mix sparingly — this pigment already contains two complex personalities

The less you do, the better it looks.

Mixing Suggestions (If You Must Touch It)

While Undersea Green is already a complete idea, it plays well with others:

• Quinacridone Gold → glowing olive greens
• Lunar Black → insane texture for rocks/trees
• Ultramarine Blue → deeper, stormy greens
• Burnt Sienna → muted moss and earthy greens
• Sap Green → livelier foliage transitions

But really… it doesn’t need help. It just likes showing off.

Original painting and fine art prints available HERE

Who Should Buy Undersea Green?

You’ll love it if you:

• Paint florals, landscapes, forests, or coastal scenes
• Enjoy granulation and pigment separation
• Want natural greens without the mixing headache
• Appreciate colors that add complexity with minimal effort

You might skip it if you:

• Only want flat, smooth washes
• Prefer non-granulating paints
• Paint only bright florals with no shadows
• Work exclusively on hot press or marker paper

My Verdict

Undersea Green is one of Daniel Smith’s most impressive and useful colors — period.
It’s natural, atmospheric, dramatic, and textured in all the right ways. If you want greens that look like they belong in the real world, not a coloring book, this one is going to be a regular on your palette.

It’s a color that earns loyalty fast.

Purchase These Paints Online:

Undersea Green

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Imperial Purple

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Cascade Green

https://amzn.to/3AApLSS

Rose of Ultramarine

https://amzn.to/4hIvwP5

Shadow Violet

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Moonglow

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How Does Daniel Smith Undersea Green Compare?

• Best for Granulation: Daniel Smith Sodalite Genuine – Both paints produce beautiful texture, but Sodalite Genuine creates blue-gray mineral granulation while Undersea Green offers earthy greens with subtle color separation that are perfect for foliage and landscapes.
• Best for Color Separation: Daniel Smith Rose of Ultramarine – Rose of Ultramarine separates dramatically into blue and rose pigments. Undersea Green separates more subtly into natural green and earthy tones, making it ideal for trees, grasses, and weathered landscapes.
• Best for Atmospheric Greens: Holbein Shadow Green – Shadow Green creates cooler, muted greens for shadows and distant landscapes. Undersea Green is warmer, more textured, and produces more natural-looking foliage straight from the tube.
• Best for Tropical Landscapes: Peacock Blue – Peacock Blue excels in brilliant oceans and tropical water. Undersea Green is much earthier and better suited for forests, marshes, moss, and natural vegetation.
• Best Mixing Companion: Quinacridone Burnt Orange – One of my favorite landscape combinations. These complementary colors create rich neutral browns, colorful tree trunks, and warm autumn foliage without becoming muddy.
• Best Alternative Green: Tundra Green – Tundra Green is cooler and more subdued with stronger granulation, making it ideal for misty landscapes and mountain scenes. Undersea Green is richer, warmer, and one of my favorite greens for painting realistic trees and foliage.

My Recommendation

If you enjoy painting trees, forests, marshes, weathered buildings, moss, mountains, and natural landscapes, Daniel Smith Undersea Green is one of the most versatile greens you can own. Its beautiful granulation, subtle color separation, and earthy character create realistic foliage with very little effort. It’s one of those rare convenience colors that still feels lively and full of personality.

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Ryan Fox AWS, NWS, TWSA

Ryan Fox Painting

www.ryanfoxpainting.com

(919) 645-8345