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Rainbow Slime for Colorful Play

Craft vibrant rainbow slime with this easy guide! Kids can play with color blending. This slime is fun for St. Patrick’s Day, summer, and beyond.

Skills Required: None. You’re mixing ingredients in a container, and no crafting skills are required for this project.

rainbow slime

Who says you need a pot of gold to enjoy a rainbow? Today, we’re swapping out gold for something even more magical – slime!

Today I’m headfirst into the world of DIY with a color-packed, stretchy, and absolutely irresistible rainbow slime recipe that’s as fun to make as it is to play with.

We’re keeping things simple and mess-minimal. You’ll only need a few household items: clear school glue, water, baking soda, contact lens solution, and food coloring. That’s it!

No secret ingredients or slime conjuring spells required. Although, a little bit of magical enthusiasm wouldn’t hurt.

This isn’t just any slime; this is rainbow slime. It’s layers of beautifully blended red, orange, yellow, green, blue, and purple that will have you and your kids (or just you, no judgment here!) stretching, pulling, and perhaps questioning your adult responsibilities as you marvel at your vibrant creation.

Aside from being ridiculously cool and Instagram-worthy, it’s a fantastic way to teach kids about colors and mixing. It’s also the perfect solution for a rainy day, a birthday party activity, or even just a good excuse to get your hands gooey.

slime rainbow slime

So, roll up your sleeves, protect your surfaces (trust me on this one), and get ready for some serious slime-time fun.

Forget about the fails you might have seen online; with this guide, you’re on the path to becoming a slime-making champion. So, what are you waiting for? Let’s get slimy!

Tips for Making Slime

If you’ve never made slime before, here are some great tips you might be interested in. If you don’t need them, head on down to the recipe.

Measure Ingredients Precisely

The key to perfect slime is in the details. Measuring your ingredients as accurately as possible can make the difference between slime that’s just right and a recipe that’s too sticky or too brittle.

Add Mix Ins Slowly

If you’re adding color, glitter, or other fun elements, add them slowly and mix thoroughly to see the effect. You can always add more, but you can’t take it out once it’s in there.

rainbow slime recipe

Adjust Texture as Needed

If your slime is too sticky, add a little more activator (like borax solution, liquid starch, or saline solution). If it’s too stiff, add more glue or a bit of water. Do this gradually!

Use Supplies You Don’t Mind Getting Messy

Slime can get everywhere, and while it’s usually easy to clean up, it’s best to use tools (bowls and utensils) and surfaces you’re not worried about.

Use Your Hands

Once the slime begins to form, use your hands to knead it. This helps improve the texture and mix everything evenly. Don’t be afraid to get a little messy!

Storage is Key

Keep your slime in an airtight container when not in use. This will help it last longer and prevent it from drying out.

Safety First

Always use safe, non-toxic ingredients, and if you’re crafting with younger kids, make sure they’re supervised, especially with ingredients like borax.

rainbow slime ingredients

Slime making is all about experimenting and having fun, so don’t be afraid to try new things and see what works best for you. Enjoy your crafting! Here’s what you’re going to need:

Gather These Supplies

  • 6 bottles clear Elmer’s Glue (5 oz. size)
  • 1/4 cup warm water – for each color
  • 1/2 tsp baking soda – for each color
  • 1 T contact lens solution (should contact boric acid) – for each color
  • Food coloring – red, orange, yellow, green, blue, purple (or colors of your choice)

Tips and Thoughts for This Craft

Store your slime in an airtight container or baggie. If your slime gets stiff, you can try to add a little water – lotion – hand sanitizer – or even a bit more glue to soften and reactivate it.

rainbow slime DIY

Get the recipe below:

Yield: 2 cups

Rainbow Slime

rainbow slime

Step into a world of magic with our unicorn slime tutorial! Learn how to make sparkly, colorful slime that's fun for all ages.

Prep Time 5 minutes
Active Time 10 minutes
Total Time 15 minutes
Difficulty Easy
Estimated Cost $1


  • 6 bottles clear Elmer's Glue (5 oz. size)
  • 1/4 cup warm water - for each color
  • 1/2 tsp baking soda - for each color
  • 1 T contact lens solution (should contact boric acid) - for each color
  • Food coloring - red, orange, yellow, green, blue, purple (or colors of your choice)


  • Bowls
  • Stir stick or spoon


  1. Add 1 bottle of clear glue and warm water to the bowl and stir to mix.pouring clear glue into the bowl and mixing with water
  2. Add in baking soda and stir to combine.Add in baking soda and stir to combine
  3. Add a few drops of food coloring and stir, then add the contact solution and continue to stir until the slime is no longer sticky. You may need to knead to incorporate all the ingredients well.Adding food coloring and contact lens solution
  4. Place in a separate bowl or a sandwich baggie while you are creating all the colors.Making red slime
  5. To create each color of the rainbow repeat steps 2 & 4 until all the colors are made. Twist together as desired.Red, orange, yellow, green, blue, purple slimes


If the slime is still sticking, add 1/2 teaspoon of contact solution at a time until it is no longer sticky.

Costs for this craft will vary - if you make a lot of slime like we do and buy the ingredients in bulk, it can cost pennies!

Did you make this project?

Please leave a rating or share a photo on Pinterest!

I hope you enjoyed this fun activity! Please let me know what you think in the comments. I’d love it if you’d go check our other slime posts:

ClayClearCloudColor ChangingCrunchyEdibleFluffyGalaxyGreen BoogerLaundry DetergentGlitterGlow in the DarkHalloweenPlay DohSandSlime ShopsUnicorn

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