How To Color Grout With Acrylic Paint

Today, I have a fun and creative DIY project for you: coloring grout with acrylic paint! If you’re tired of the same old white or gray grout in your tiles, this simple technique can transform your space and add a pop of color. Whether you’re looking to create a bold mosaic effect or simply want to freshen up the look of your bathroom, coloring grout with acrylic paint is an easy and affordable way to customize your tiles to suit your style. In this article, I’ll guide you through the step-by-step process of coloring grout with acrylic paint, so get ready to unleash your inner artist and let’s get started!

How To Color Grout With Acrylic Paint

Materials Needed

Before you begin the process of coloring your grout with acrylic paint, make sure you have all the necessary materials. Here’s what you’ll need:

Acrylic paint

First and foremost, you’ll need acrylic paint in the color of your choice. Acrylic paint is a popular choice due to its versatility and durability. It adheres well to grout and provides vibrant colors.


Of course, you’ll need grout as well. Make sure the grout is clean and free of any dirt or grime before you start. If necessary, clean the grout using a suitable grout cleaner and let it dry completely.

Paintbrush or sponge

You’ll need a paintbrush or a sponge to apply the acrylic paint to the grout. The choice between a brush or a sponge depends on your preference and the texture of the grout lines.

Mixing container

To achieve the desired consistency of the paint, you’ll need a mixing container. This can be a small bowl or any other container that is suitable for mixing paint.


Water is an essential component in preparing the acrylic paint for grout coloring. It helps thin the paint and achieve the desired consistency.

Clean cloth or sponge

Having a clean cloth or sponge is crucial for blending the paint and removing any excess paint from the grout lines. This will ensure an even and professional-looking finish.

Disposable gloves

It’s always a good idea to protect your hands while working with acrylic paint. Disposable gloves will prevent any unwanted staining of your skin and make the cleaning-up process much easier.

Painter’s tape (optional)

If you’re concerned about accidentally getting paint on the surrounding tile or surfaces, you may want to consider using painter’s tape to protect these areas. This step is optional but can be helpful for a cleaner final result.

Preparing the Grout

Before you can begin coloring the grout, it’s essential to properly prepare it. Follow these steps:

Clean the grout

Start by cleaning the grout thoroughly. Use a suitable grout cleaner and scrub the grout lines with a brush or sponge. This will remove any dirt, grease, or stains that may affect the adhesion of the acrylic paint.

Let the grout dry

After cleaning the grout, allow it to dry completely. This step is crucial as adding paint to damp or wet grout can lead to poor adhesion and uneven coloring. Depending on the climate and ventilation, this may take several hours or even a full day.

Protect surrounding areas (optional)

If you’re concerned about accidentally getting paint on the surrounding tile or surfaces, you can take the extra step of protecting these areas. Simply apply painter’s tape to the edges of the tiles or any other surfaces that you want to keep paint-free. This will create a barrier and make the cleanup process easier.

Choosing the Right Acrylic Paint

Selecting the right acrylic paint for coloring your grout is crucial for achieving the desired results. Consider the following factors when choosing your paint:

Select a suitable acrylic paint

Make sure to choose an acrylic paint that is suitable for use on grout. Check the label or consult with a paint professional to ensure you’re using a paint that is recommended for this specific purpose. Using the wrong type of paint may not adhere properly or could create unknown chemical reactions.

Consider the color intensity

Be mindful of the color intensity you want to achieve when selecting your acrylic paint. Some paints may appear more vibrant or opaque when dry, while others may have a more translucent or subtle finish. Take into account the color of the tiles and the overall aesthetic you desire.

Choose a paint with a matte finish

For most grout coloring projects, it’s best to choose a paint with a matte finish. A matte finish will blend seamlessly with the grout lines and create a more natural look. Glossy finishes may not adhere as well or may create a shiny appearance that stands out from the surrounding tiles.

Preparing the Acrylic Paint

Now that you have your acrylic paint, it’s time to prepare it for application. Follow these steps:

Squeeze out the desired amount of paint

Start by squeezing out the desired amount of acrylic paint into a mixing container. Take into account the size of the grout lines you’ll be coloring and the number of coats you plan to apply.

Mix water with the paint

To achieve the ideal consistency for grout coloring, gradually add water to the acrylic paint while stirring. Add water in small increments, ensuring you don’t make the paint too thin or runny. The goal is to create a paint mixture that is easy to work with and spreads evenly.

Achieve the desired consistency

Keep adding water and stirring until you achieve the desired consistency. The ideal consistency is typically similar to that of pancake batter. The paint should flow smoothly and easily onto the grout lines without being too thick or too thin.

How To Color Grout With Acrylic Paint

Applying the Paint to the Grout

Now that your paint is ready, it’s time to apply it to the grout. Follow these steps for a successful application:

Apply the paint using a brush or sponge

Dip your paintbrush or sponge into the paint mixture and start applying it to the grout lines. If using a brush, apply the paint in a back-and-forth motion along the grout lines. If using a sponge, use a dabbing or stippling motion to evenly distribute the paint.

Work in small sections

To ensure the paint doesn’t dry before you have a chance to blend it, work in small sections at a time. Focus on a few grout lines at once and avoid spreading the paint too thin or thick. This will give you more control and allow for easier blending.

Apply multiple thin layers

Instead of applying one thick coat of paint, it’s better to apply multiple thin layers. This will help achieve a more even and professional-looking finish. Allow each layer to dry before applying the next one, and aim for at least two to three layers for optimal coverage and color intensity.

Be careful around tile edges

When applying the paint, pay extra attention to the areas around the tile edges. Take your time and use a steady hand to prevent getting paint on the tiles themselves. If any paint accidentally gets on the tiles, wipe it off immediately with a damp cloth or sponge.

Edges of the grout lines

While focusing on the grout lines, make sure to also cover the edges of the grout lines. These edges may be more exposed and prone to staining, so ensure they are adequately coated with paint for a uniform look.

Blending the Paint

After applying the paint to the grout lines, it’s time to blend the paint for a seamless finish. Follow these steps:

Blend the paint using a clean cloth or sponge

Take a clean cloth or sponge and lightly dampen it with water. Gently blend the paint by gently wiping the cloth or sponge over the painted grout lines. This will help remove any excess paint and create a smoother and more blended appearance.

Remove excess paint

While blending, it’s common to encounter areas with excess paint. If you notice any buildup or pooling of paint, use the edge of the cloth or sponge to gently remove it. This will prevent any clumps or unevenness in the final result.

Ensure even coverage

As you blend the paint, pay attention to achieving even coverage across all the grout lines. Make sure no areas are missed or have too little paint, as this can create an inconsistent look. Take your time and be thorough in your blending process for the best outcome.

How To Color Grout With Acrylic Paint

Letting the Paint Dry

After completing the coloring and blending process, it’s important to allow the paint to dry completely. Follow these steps:

Allow the paint to dry completely

Give the paint ample time to dry and cure. Depending on the brand and type of acrylic paint, this can take anywhere from a few hours to a full day. Read the manufacturer’s instructions for the recommended drying time.

Check for any touch-ups

Once the paint is dry, carefully inspect the grout lines for any areas that may need touch-ups. If you notice any spots with less coverage or uneven coloring, you can go back and apply additional paint to those areas. It’s always better to ensure a thorough and polished finish.

Avoid moisture exposure

After the paint has dried, it’s important to avoid exposing it to excessive moisture for at least a week. Avoid any activities that may involve water, such as mopping or showering, to allow the paint to fully cure and adhere to the grout. This will help prolong the lifespan of the painted grout and prevent any premature wear or peeling.

Sealing the Grout (Optional)

While not necessary, sealing the colored grout can provide additional protection and longevity. Follow these steps if you choose to seal the grout:

Consider using a grout sealer

Invest in a grout sealer specifically designed for use on colored grout. The sealer will act as an extra barrier, protecting the paint from dirt, stains, and moisture.

Follow the manufacturer’s instructions

Read and follow the manufacturer’s instructions carefully when applying the grout sealer. Each product may have different application methods, drying times, and recommended number of coats. Adhering to the instructions will ensure the best results.

Apply the sealer evenly

Using a brush or sponge, apply the grout sealer evenly across the painted grout lines. Be cautious not to apply too much sealer, as it can create a glossy appearance or result in a sticky residue. Follow the instructions regarding drying time and any additional coats that may be necessary for proper sealing.

Maintaining Colored Grout

To keep your colored grout looking its best, proper maintenance is essential. Follow these tips for maintaining colored grout:

Regularly clean the colored grout

To prevent dirt and grime buildup, regularly clean the colored grout using a mild cleaning agent suitable for use on grout. Avoid harsh chemicals that can damage or fade the color of the grout.

Use mild cleaning agents

When cleaning the colored grout, opt for mild cleaning agents such as vinegar or mild dish soap diluted in water. Harsh chemicals or abrasive cleaners can strip the paint or cause discoloration.

Avoid abrasive tools

When scrubbing the grout lines, avoid using abrasive tools such as scouring pads or stiff brushes. These can scratch or wear away the paint, leading to a less cohesive and faded appearance over time.

Inspect and touch up if necessary

Regularly inspect the colored grout for any signs of wear or fading. If you notice any areas that require touch-ups, apply additional paint to those spots. This will help maintain the color consistency and extend the lifespan of the colored grout.


Coloring grout with acrylic paint is a fantastic way to add a personal touch and revitalize the look of your tiles. By following the steps outlined in this article, you can achieve a beautiful result that complements your aesthetic preferences. Remember to properly prepare the grout, choose the right acrylic paint, and blend the paint for an even finish. Regular maintenance and touch-ups will keep your colored grout looking fresh and vibrant for years to come. Happy grout coloring!

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