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modern rainbow birthday party ideas

PIN this Rainbow Art Party to try it later!

We’ve featured lots of rainbow parties here on HWTM over the years, but this is the first one that I designed myself. I wanted it to feel fresh, modern, vibrant, and HAPPY!

Colorful balloons, streamers, and paper were my key design elements. I also infused a bit of “art party” in here, with coloring placemats, art-inspired party activities, and a party favor/treat station that literally looks like a paint palette! As usual, printable paper designs played a big role in this party – from signs and labels to the DIY birthday hats. 🥳

Modern Art Party Printables

My Modern Art printables are available in our store! Use them to add instant style and personalized details to your party. 🙌 You can edit the custom text yourself – right on the website – whenever (and as often as) you need to! Click here to buy this collection.

Modern Art Party Printables


Some of my favorite details to look out for:

  • “Double Rainbow” birthday cake decorated with chopped Rainbow Twizzlers + sprinkles
  • Guest of honor chair surrounded by colorful balloons and rainbow paper garlands
  • “Rainbow Skies” party punch with vanilla ice cream “clouds” and rainbow fruit
  • DIY “Birthday Cake” table centerpiece with balloon “candles” and tissue fringe “frosting”
  • Paint palette inspired favor table with mini paint bucket favor tins

printable kids birthday party placemats

Coloring Placemats

Coloring is always a great way to keep little ones entertained! These cloud-shaped placemats come in 2 designs and are included in the printables. Note: The placemats are formatted on 11×17 paper. I printed them as black & white engineering prints at Staples. You can fit 2-up on their 18×24″ paper, which makes them less than $1 each.

Guest of Honor Chair + Photo Backdrop

Rainbow balloons, circle garlands, and honeycomb balls make for a happy-go-lucky photo backdrop and gift-opening spot!

rainbow party balloons - guest of honor chair

For the circle garlands, I used craft circle punches to cut circles from colored card stock, then sewed them together with my extremely limited sewing machine skills. You can also use hot glue to make the garlands, as demonstrated in this other rainbow chair design. I used 1.5” circle punches for the smaller garlands shown here. A combination of 2” and 3” circle punches were used for the big ones.

Rainbow Cake

You don’t have to be a pro baker to whip up a fun birthday cake! This playful cake topper features paper balloon designs hot-glued to bamboo skewers:

rainbow party cake + printable cake topper

To decorate the cake, I used kitchen shears to chop up Rainbow Twizzlers into giant “sprinkles”. These provided a nice size contrast to the regular rainbow sprinkles.

For the inside of the cake, I used a rainbow cake boxed mix which produced beautiful, vibrant colors but didn’t rise much at all. So… I used another box of cake mix (in white) to bake an additional layer to go between the rainbow layers. This gave the cake some much needed height plus a happy silver lining: a “double rainbow” inside the cake! ;)

rainbow party printables

A Colorful Kids Table

The place settings on the kids table featured the coloring placemats that I mentioned earlier, crayon packs, birthday hats, and kazoos. What’s a kids party without lots of NOISE, right? ;)

rainbow party kids table and coloring placemats

I also hung garlands on the chair backs and designed an artsy “faux birthday cake” centerpiece, which I’ll post a tutorial on later. In a nutshell though, the centerpiece is made from floral foam bricks, crepe paper, and tissue fringe + balloon and wood dowel “candles”.

Rainbow Confetti Popcorn

Kids will go crazy for this sweet and colorful treat! To make it, add approximately 1/2 cup of white melting chocolate per 8 cups of popped kettle corn or regular popcorn. Pour the melted chocolate on top of the popcorn and toss gently to coat. Spread the popcorn out evenly on a baking sheet, then sprinkle generously with rainbow sprinkles. Let dry for 2-3 hours.

rainbow confetti popcorn

Rainbow Party Drinks

The signature drink was a “Rainbow Skies” Party Punch with blue fruit punch, vanilla ice cream “clouds”, and colorful chopped fruit.

rainbow ice cream punch

The punch was served in clear cups that I embellished with skinny balloons (the twisty kind you use to make balloon animals).

rainbow party drinks

Colorful sparkly craft poms were the perfect ingredient for fun party straws!

rainbow party straws

Rainbow Rock Painting Activity

For this craft, you’ll need to collect or buy a bunch of large, smooth stones for your party guests to paint. You can also purchase rocks that are pre-painted with a matte black coating (or add one yourself), which will make the bright paint colors really POP! For the craft supplies, you’ll need kid-friendly paint in a rainbow of colors, small paint brushes, and any extras you want to include, like rhinestones or googly eyes.

rainbow party rock painting activity

Helpful Tips: Paper cups filled with water are helpful for rinsing brushes. Paper plates are great for drying time and for saving your table cloth from paint splatters!

Rainbow Sand Art Activity

Kids will love making their own sand art creations to take home and display! You’ll need colored sand, clear containers with tops, big spoons, and FUNNELS. Choose from plastic or glass containers, depending on the ages of your guests. I used inexpensive glass bud vases (purchased at Ikea) plus cork bottle tops.

rainbow party sand art activity

To fill the bottles, insert the funnel into the bottle top and pour the sand in slowly. Alternate colors often to create the pretty layered look. Older kids should be able to pour the sand themselves. For younger kids, it’s best to have them pick out the sand colors and help by holding the funnel in place while an adult pours the sand. You can also let younger kids spoon the sand into the funnel while you hold it.


Paint Palette Favor Station

Since I partnered with Hershey’s on this party (in celebration of their shiny new Hershey’s KISS colors) – I wanted to design a candy station that really made the individual colors stand out. The result was this fun “paint palette” inspired favor station!

rainbow party favor table

rainbow party favors - mini paint buckets

rainbow party chocolate mix

PIN this Rainbow Art Party to try it later!

Modern Art Party Printables

Printables are my favorite *secret weapon* for adding unique style to any celebration! Click here to customize my Modern Art collection for your own party – instantly, online. 🤗

Modern Art Party Printables

Hope you found some inspiration here for your own rainbow art party! If you have questions, please feel free to ask away in the comments section below.

P.S. For more inspiration like this, check out our Rainbow Party archives.

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