Why Do Some Paint Colours Need More Coats Than Others? 🎨

Have you ever painted one room and achieved perfect coverage in two coats—then used a different colour and found yourself reaching for the roller again?

You're not imagining it.

Some paint colours genuinely require more coats than others.

The difference comes down to several factors, including the pigments used to create the colour, the paint base, the colour underneath, product quality, and even how the paint is applied.

Understanding why can help you plan your next painting project more accurately—and avoid assuming something has gone wrong when a bold colour needs an extra coat.

1. Different Pigments Have Different Hiding Power

Paint colour is created using pigments, and not every pigment provides the same level of opacity.

Some pigments naturally hide the surface underneath extremely well, while others are more transparent.

This is one reason why colours such as:

• Bright reds
• Vibrant yellows
• Oranges
• Certain deep blues
• Highly saturated colours

can sometimes require additional coats to achieve their full depth and consistency.

Meanwhile, many whites, greiges, muted neutrals, and softer colours may achieve uniform coverage more easily.

💡 Colour intensity and coverage aren't the same thing. A colour can look extremely strong while still relying on relatively transparent pigments.

2. Deep Colours Often Use a Different Paint Base

When you buy paint, the colourants aren't simply added to the same white paint every time.

Paint manufacturers use different bases depending on the final colour.

Light colours typically begin with a base containing more white pigment.

Deep and saturated colours often require a deeper or more transparent base so there is enough room for the colourants needed to create the final shade.

That helps produce rich, accurate colours—but it can also mean the coating behaves differently when covering the surface underneath.

This is why a dramatic navy, burgundy, or deep green may require more attention to achieve a completely uniform finish.

3. The Existing Wall Colour Makes a Huge Difference

The colour you're painting over can be just as important as the colour you're applying.

Imagine painting:

🤍 Off-white over light beige

versus

💛 Bright yellow over dark charcoal.

The second project naturally has a much greater colour transition to overcome.

Large changes between the existing and new colour can increase the number of coats required.

This is particularly noticeable when going:

• Dark → Light
• Light → Dark
• Strong colour → Pale neutral
• Strong contrasting colour → Another strong colour

In these situations, good preparation and the right primer can make a significant difference.

4. Primer Can Help with Dramatic Colour Changes

Primer isn't required before every repaint, but it can be extremely useful when making a major colour change.

A suitable primer can:

✔ Create a more uniform starting surface
✔ Improve adhesion where required
✔ Reduce differences in surface porosity
✔ Help cover repaired areas
✔ Make challenging colour transitions easier

For some deep colours, a suitably tinted primer may also be recommended rather than starting over a bright white surface.

The correct primer depends on the substrate, existing coating, and final colour, so it's worth checking before beginning the project.

5. Why Are Red and Yellow Often Difficult? ❤️💛

Painters often notice that certain strong reds and yellows can take more work to achieve a rich, uniform finish.

This largely comes back to pigment characteristics and the formulation required to create these intense colours.

After the first coat, you may notice:

• Uneven-looking colour
• Lighter areas
• Roller patterns
• The previous colour showing through

That doesn't necessarily mean there's anything wrong with the paint.

The colour may simply need additional film build before reaching its intended appearance.

💡 Don't try to compensate by applying one extremely heavy coat. Several properly applied coats are better than one excessively thick coat.

6. Paint Quality Matters Too

Colour isn't the only factor.

Paint formulation influences:

• Hiding power
• Levelling
• Pigment distribution
• Application
• Durability
• Final appearance

A premium paint is designed to provide strong performance and consistent results, but even premium products can't change the fundamental characteristics of every possible colour.

This means “premium paint” doesn't automatically mean every colour will cover perfectly in one coat.

The surface, colour, application, and product all work together.

7. Benjamin Moore Gennex® Colour Technology 🎨

Benjamin Moore uses its proprietary Gennex® Colour Technology to create its colour palette.

Rather than treating colour as an afterthought, Benjamin Moore develops its colourants to work with its paint formulations.

This helps provide:

✔ Accurate colour
✔ Consistent colour development
✔ Excellent colour performance
✔ Rich, complex shades

However, even with advanced colour technology, extremely saturated colours can behave differently from pale neutrals.

That's simply part of how colour formulation works.

If you'd like to understand the technology in more detail, check out our guide to Benjamin Moore Gennex® Colour Technology.

8. Your Roller Can Affect Coverage

Sometimes what looks like poor paint coverage is actually an application problem.

The wrong roller cover—or a low-quality one—may not pick up and release paint evenly.

This can leave:

• Thin areas
• Roller marks
• Uneven coverage
• Visible differences in colour depth

Choose the appropriate roller nap for the surface and make sure you're loading it with enough paint.

Trying to stretch a small amount of paint across too much wall can dramatically reduce coverage.

9. Don't Over-Roll the Paint

Another common DIY mistake is repeatedly rolling over paint as it begins to dry.

Once the coating starts setting, continuing to work the area can disturb the film and create an uneven appearance.

Instead:

✔ Work systematically
✔ Maintain a wet edge
✔ Apply an even amount of paint
✔ Avoid excessive pressure
✔ Allow the coat to dry properly before judging coverage

Fresh paint can also look uneven while drying, so don't immediately start touching up every patch you see.

10. Always Allow the Paint to Dry Before Judging It

Paint can change significantly as it dries.

During application, some areas may appear darker, lighter, shinier, or more transparent than others.

Wait until the recommended drying period has passed before deciding whether another coat is required.

A wall that looks patchy after 20 minutes may look completely uniform once dry.

So, How Many Coats Do You Actually Need?

There's no universal answer.

For many normal repainting projects, two properly applied finish coats are commonly used.

However, you may need additional coats when:

🎨 Using highly saturated colours
⬛ Making a dramatic colour change
❤️ Painting strong reds or similar challenging colours
💛 Using certain bright yellows
🧱 Painting over uneven or repaired surfaces
🖌️ Coverage has been too thin or inconsistent

Rather than focusing only on the number of coats, focus on achieving a uniform colour and consistent finish while following the product's application instructions.

Can You Just Apply a Thicker Coat Instead?

Not a good idea.

Applying paint excessively thickly can create its own problems, including:

• Uneven drying
• Runs and sags
• Poor finish quality
• Extended drying time
• Potential performance issues

If a colour requires another coat, give it another properly applied coat.

More paint at once isn't the same as proper coverage.

Planning a Bold Colour? Test It First

If you're considering a dramatic Benjamin Moore colour, testing it before buying paint for the entire room is worthwhile.

A sample allows you to evaluate:

• The actual colour in your lighting
• How it interacts with flooring and furniture
• How dramatic the transition will be
• Whether the colour is what you expected

Remember that a colour sample is primarily for evaluating colour, not necessarily predicting the exact performance of your chosen topcoat.

Need Help with a Difficult Colour?

At My Paint & Co, we can help you choose the right Benjamin Moore paint, primer, roller, and preparation products for your project.

If you're moving from a very dark colour to light—or planning a bold red, yellow, navy, or other saturated shade—ask us before you start.

A little planning can save you from wondering why you're still holding a roller after coat number three.

Final Thoughts

So, why do some paint colours need more coats?

It isn't simply because one colour is “better” than another.

Pigment opacity, paint base, the existing wall colour, surface preparation, product formulation, and application technique all influence coverage.

Some colours are naturally easier to hide with than others, while highly saturated shades may need additional coats to develop their full richness and consistency.

The key is using the right system rather than trying to force every colour to behave the same way.

✨ Visit My Paint & Co for Benjamin Moore colours, premium paints, primers, professional rollers, and expert advice for your next painting project.