Blue Paint Ideas to Try 💙

Blue Seashells: A Beachy Escape on Paper

Today’s painting session started with a craving for the ocean—so I grabbed my acrylics and mixed media paper, and decided to paint blue seashells. There’s something about the way blue shades blend that feels like a calm wave, right? I started by taping off the edges of my paper with painter’s tape to keep the borders clean (pro tip: this also makes the final piece look more polished!). My easel was set up by the window, letting in soft morning light, which helped me see the subtle differences between the blues I planned to use.

I squeezed out a few blobs of blue paint—cerulean for the brighter parts, cobalt for depth, and a touch of Prussian blue for the shadows. First, I sketched the outline of a few seashells with a light pencil—nothing too precise, just soft curves that mimicked the ones I’d collected on the beach last summer. Then, I started filling them in, layering the cerulean first as a base. I blended in cobalt blue along the edges, dragging the brush in small, circular motions to create that iridescent sheen seashells have. For the deepest shadows, I dipped the tip of my brush in Prussian blue and dotted it along the creases, then blended it out gently.

Once the paint dried a bit, I grabbed a blue ink pen and added tiny details—little lines to mimic the ridges, and a few white dots (with a correction pen) to make the shells look wet, like they’d just been washed up by the tide. The result? Super colorful and cute, just like I wanted! It’s sitting on my desk now, and every time I look at it, I can almost hear the waves. I keep thinking about the next time I’ll go shell-hunting—maybe I’ll find a real one that looks just like my painting.

Blue Mussels: Textured and Full of Life

A few days after the seashells, I wanted to try something with a bit more texture—so blue mussels became my next project. Mussels have such a unique shape, with their rough, elongated shells, and I thought blue would make them look almost magical. I cut a piece of Strathmore craft paper into a 4x6 size (perfect for a small, frame-worthy piece) and gathered my acrylics: titanium white, cobalt blue, cerulean blue, and Prussian blue.

First, I painted the background a soft, cloudy white—just a light wash of white acrylic mixed with a drop of water. Then, I started sketching the mussels in pairs, since they’re usually found clustered together. For the shells, I used a flat brush to apply thick cobalt blue paint, dragging the brush from the top of the shell to the bottom to create the rough texture. I added cerulean blue to the raised parts, blending it slightly to make them pop. The edges got a touch of Prussian blue, and I used the end of my brush to scratch tiny lines into the wet paint—this made the shells look like they had real, weathered ridges.

To make them look more lifelike, I mixed a little white with cerulean blue and dotted it along the edges of each shell, mimicking the way light hits them. I stepped back, and suddenly they looked like they could be in a tide pool, glistening under the sun. I’m usually all about sketchbook drawings, but this painting? I’m really proud of it. It’s simple, but the blue shades make it feel so vibrant. Do you ever paint food or sea creatures? There’s something satisfying about turning something ordinary into art.

Twilight Sky with an Electric Pole: Quick and Cozy

Not all blue paintings need to be detailed—sometimes, simple is best. That’s why I tried a twilight sky with an electric pole as the focus. It’s the kind of project you can do in 20 minutes (including drying time!) when you need a little creative pick-me-up. I used A5 watercolor paper, but you could use any size—no need to overcomplicate it. For paints, I grabbed acryl gouache (but watercolors or regular gouache work too!) in blue and black.

Step one: Paint the background. I started with a dark blue at the edges of the paper, then blended it inwards with lighter shades of blue—from Prussian to cobalt to a soft cerulean. The key is to keep the brush strokes loose, so the sky looks like it’s fading from dusk to twilight. No need for perfect blending—some streaks make it look more natural. Step two: Once the sky was dry, I drew the electric pole in the center with black paint. I used a small round brush for the thin parts and a flat brush for the thicker base—pressing a little harder to get a wider line. Step three: Add the wires. I used a black pen (way easier than paint!) to draw a bunch of interconnected wires, looping them from the top of the pole to the edges of the paper. I made some wires thick and some thin, and even added a few tiny dots to look like birds (shh, don’t tell if they look more like blobs!).

And that’s it—voilà! It’s simple, but there’s something cozy about it. The blue sky feels calm, and the electric pole adds a little bit of everyday charm. I hung it on my wall next to a photo of my grandma’s house (she has an electric pole in her backyard), and it fits perfectly. If you try this, I’d love to see how yours turns out—maybe you’ll add stars, or a moon, or even a little birdhouse on the pole. The best part is, there’s no wrong way to do it.

Choosing the Right Blue Paint: My Go-To Shades

After painting seashells, mussels, and twilight skies, I’ve learned that the right blue paint can make or break a project. Not all blues are created equal—some are bright and airy, others are deep and moody, and some are just perfect for adding depth. Here are a few of my favorites (and no, it’s not an exhaustive list, but these are the ones I reach for again and again!).

First up: Van Deusen Blue. It’s one of my all-time favorites! It’s rich but not too dark, with a hint of gray that makes it look almost vintage. I used it for the shadows on my seashells, and it added so much depth without overpowering the brighter blues. Then there’s Celestial Light—soft, airy, and just a little bit pale. It’s perfect for skies, like the twilight one I painted. It blends so easily with darker blues, making it great for gradients.

Hale Navy is another must-have. It’s deep, almost like the ocean at night, and it’s great for adding drama. I used it for the edges of my mussel shells and the darkest parts of the twilight sky—it really makes the lighter blues pop. In The Navy is similar, but with a touch more green, which gives it a slightly different vibe. I’ve used it for tree shadows in blue landscapes (yes, blue trees—they’re a thing!) and it looks amazing.

Blue Heron is a muted blue, like a storm cloud that’s just starting to clear. It’s soft but has enough depth to stand on its own—I used it for the base of my seashells before adding brighter blues on top. Providence Blue is classic and crisp, like a summer sky at noon. It’s great for the main color in any blue project, since it’s not too warm or too cool. And Lakeside? It’s fresh and bright, like the water in a mountain lake. I used it for the highlights on my mussels, and it made them look like they were glowing.

Choosing the right blue depends on what you’re painting, but honestly? Sometimes I just grab a few and mix them until I get the shade I want. That’s the fun of painting—there are no rules. Whether you’re using Van Deusen for shadows, Celestial Light for skies, or a mix of three different blues for a seashell, the most important thing is to have fun with it.

Painting blue things has become my favorite way to unwind. There’s something about the color that feels calm, yet full of life—whether it’s a seashell, a mussel, a twilight sky, or just a blob of paint on paper. It’s a reminder that even the simplest things can be beautiful, especially when you add a little blue. So grab your brushes, squeeze out some paint, and let the blue inspire you—you never know what you’ll create.