Painting grout | Duravit

Most bathrooms thrive on clean lines, harmonious colors, and high-quality finishes. Tile grout is often essential to achieving this look—yet it’s frequently overlooked. However, painting grout is becoming increasingly popular and is an effective, low-effort way to add pops of color to your bathroom. Moreover, even the most beautiful tiles lose their appeal if the grout looks gray or stained. Here, you’ll learn how to paint tile grout and what to keep in mind when doing so.

A modern, colorful bathroom featuring bathroom furniture and fixtures from the Duravit D-Neo series

Joints as a design element

Grout lines are much more than just a functional detail. Their colors can significantly influence how calm, spacious, or textured a bathroom appears. This is why they are increasingly becoming a focal point of design, especially in modern bathroom concepts.

Matching colors

Wall-mounted toilet from the Duravit D-Code series

Contrast grout

Using contrasting colors to paint bathroom grout deliberately highlights the tile format. Dark grout paired with light-colored tiles creates graphic patterns and adds depth and character to the bathroom. This creates a modern, architectural look, especially with large-format tiles or geometric laying patterns. It’s important to have a cohesive overall design: too much contrast can quickly make the room feel cluttered.

Single-lever basin mixer from the Duravit Wave series in brushed bronze

Basic color selection

If you don’t want to go for a tone-on-tone scheme or overly strong contrasts, you should pay attention to the color temperature to find the design that works best for you. Warm grout colors such as sand, greige, or cream enhance a cozy atmosphere and harmonize well with wood, natural stone, or matte finishes. Cooler gray or anthracite tones, on the other hand, have a more neutral effect and are an excellent match for minimalist bathrooms with a concrete or stone look.

Materials for grouting

You should make sure you have the right materials on hand for painting over the joints.

Front view of a sink from the Duravit D-Code series with chrome faucet

Colors

Tools

You should also have the right tools on hand. This includes everything you need to clean grout lines and tiles, so you can clean the treated areas both before applying the paint and in case of any spills. There are special grout pens available for painting, though these are better suited for smaller rooms. For larger areas, we recommend using small brushes or special grout rollers and masking off the adjacent tiles.

How to paint grout

Once you have gathered all the necessary materials, you can begin painting the grout lines in the bathroom. Here’s the best way to proceed:

Sink area with a Duravit Starck 3 vanity on an L-Cube vanity base in front of a mirror, with a tall cabinet next to it

1. Check the joints

Before painting the joints, you should check them for damage and mold. If you find any, do not paint the joints; they must be replaced first. A handy tip: For mortar joints, you can mix the paint directly into the mortar; for silicone joints, colored materials are sometimes available at specialty stores.

Tip: Check out our magazine to learn how to replace silicone caulking and what to do if you find mold in your bathroom.

2. Clean the grout

Duravit Sustano shower system on a tiled wall

3. Masking

Duravit D-Code series sink with chrome faucet

4. Painting