DIY Galaxy Wall x Sherwin Williams Paint

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"Disclosure: I received paint from Sherwin - Williams. as compensation for this post. As always, all views and opinions expressed in the post are my own. No other compensation was provided." You can follow Sherwin Williams on Facebook, Instagram + Pinterest for more inspiration.


When we found out we were pregnant with baby number two (soon to find out, two and three!), I knew the theme I wanted to follow. Who remembers those glow in the dark star stickers we had as kids? We had them on the ceiling of our bedroom and I remember picking them off all the time because my bunk bed was so close to the ceiling! Haha, sorry mom and dad.

Thats where the inspiration for a galaxy wall game from! Hopefully these boys don’t pick these star decals off like I did mine….Karma.

I liked the idea of painting a mural onto the nursery wall instead of using wallpaper. I know that these baby/toddler days are short lived and so doing something that I could easily remove or repaint down the road was key. I also needed something fool proof because hello, Not Picaso over here lol!

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We started by prepping our walls, then painting 2 coats of Sherwin Williams Charcoal Blue from the Colormix Color Forecast in eggshell (SW 2739). Sherwin-Williams helped guide us during our prep. I have included their guide at the end of this post for you :) !

We chose to use their Emerald line for the paint’s base as it is low-VOC’s and inhibits the growth of mold and mildew. PERFECT in my opinion for a nursery…especially when you’re like me, finishing up the nursery within a few weeks of expecting. I definitely didn’t have to worry about any strong paint smells lingering around.

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Once the paint was dry, we set up a small tray of white paint and a sponge.  Be sure before starting this step, that you have both the blue and white paint easily accessible.  The paint will dry super fast so it’s important to work quickly!

With the sponge dipped in white paint, we spread a random spot on the wall (shown above). A little goes a long way with this step. Start off with a small amount of white paint and work your way up, adding more if needed.  We only used about a teaspoon of white paint on the sponge for each cluster.

*Avoid doing more than one cluster at a time. This way you have time to work on each one before the paint begins to dry.

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Next, we added charcoal blue over the white with a roller and began to spread it out and blend the colours together.  Keep in mind, when doing this step to not fully mix the colours.  You want to have spots that are lighter than others to add to the effect of the galaxy look.

When blending the paints, we worked in a circular motion with our roller, slowly working our way out creating a fading effect.

When blending the paints, we worked in a circular motion with our roller, slowly working our way out creating a fading effect.

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This next step was my favourite!! Adding the star clusters really started to bring the wall together to give it a more realistic galaxy look.  Taking an old hard bristle toothbrush and a credit card or stiff cardstock, dip your toothbrush bristles in the white paint, point the head of the brush towards the wall and brush the credit card across the top of the bristles towards you. Beware, this step can get messy!! I had white speckles in my hair for a few days 😂🙈!

This next step was my favourite!! Adding the star clusters really started to bring the wall together to give it a more realistic galaxy look.

Taking an old hard bristle toothbrush and a credit card or stiff cardstock, dip your toothbrush bristles in the white paint, point the head of the brush towards the wall and brush the credit card across the top of the bristles towards you. Beware, this step can get messy!! I had white speckles in my hair for a few days 😂🙈!

When you’re adding your star clusters, concentrate in small patches where you focus on adding a lot of splatter. Then very lightly, add some more splattered paint around the clusters and the remaining areas, keeping in mind to not go too heavy with the paint as you would when doing a cluster.

When you’re adding your star clusters, concentrate in small patches where you focus on adding a lot of splatter. Then very lightly, add some more splattered paint around the clusters and the remaining areas, keeping in mind to not go too heavy with the paint as you would when doing a cluster.

Okay, I lied. Adding the star decals was my favourite step! Follow the instructions of the decals you are adding for this step. These decals were from  Urban Walls  and they required a waiting period before adding them to freshly painted walls. Just to keep in mind.

Okay, I lied. Adding the star decals was my favourite step! Follow the instructions of the decals you are adding for this step. These decals were from Urban Walls and they required a waiting period before adding them to freshly painted walls. Just to keep in mind.

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While adding your decals, take a step back and look at the wall as a whole from time to time to make sure you like your decal placement. I like to place my star decals in groups of small and large stars while also having some stars scattered in random areas.

Once you have finished adding you’re decals, your set! Go grab a cup of coffee, sit back, and admire your work… while your coffee is still hot! (Where are my mamas at?!)

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I hope you enjoyed this DIY Galaxy Wall tutorial! I would love to see your take on a galaxy wall. Be sure to share your project by tagging myself and/or Sherwin-Williams on social media!

Happy Painting!


Interior Painting Tips

  • Start by preparing the walls for paint by ensuring that all panels are securely nailed or glued in place, and all panel joints are taped and filled before painting drywall.

  • If you are working on plaster walls, make sure they are cleaned and completely cured before starting. Treat porous, textured, or powdery plaster with a solution of one-pint vinegar in one gallon of water until the surface is hard. Rinse with plain water before priming.  

  • If you are painting wood, fill all nail holes, joints and cracks with patching paste, then sand smooth and remove sanding dust with a tack cloth before priming.

  • When painting, be sure to open a window or door to ensure good ventilation, remove furniture from the room, tape-off woodwork and tape down drop cloths. Always paint ceilings first, followed by walls, then woodwork, and finally, the floor.

    For more tips, visit www.sherwin-williams.com