Walking into a paint store can feel like sensory overload, theres hundreds of swatches, lighting that doesn’t match your home, and the pressure to “get it right.” When considering how to choose the right paint color, it’s no wonder so many people slap a color on the wall and immediately regret it. The secret? Designers don’t pick paint based on one little chip. They follow a process that takes into account undertones, lighting, and how the color lives with everything else in the room.

Here’s how you can do the same—no regrets, no repainting.

Start with the Room, Not the Store

Your walls are the backdrop, not the star. Before you even think about swatches, look at the “fixed elements” in your room: the floors, countertops, cabinetry, or large furniture pieces you know aren’t changing. These anchor the space, and your wall color needs to play nicely with them.

• Designer Tip: Pay attention to undertones in your fixed finishes. A warm oak floor will clash with an icy blue-gray wall. Instead, choose a warm or balanced neutral that blends.
• Beginner Breakdown: Ask yourself, “Does my room feel more warm or cool overall?” Then pick a wall color that matches that vibe.

Learn the Power of Undertones (The Biggest Paint Mistake People Make)

Undertones are the hidden “whisper” of color inside every shade of paint. They don’t jump out on the swatch right away, but once the paint is on your walls, those whispers become shouts. This is why your friend’s perfect gray looks baby blue in your house, or why that cream suddenly feels yellow.

Here’s how undertones work:

• A “true neutral” is rare. Almost every gray, beige, or white has a subtle undertone that leans toward blue, green, pink, purple, or yellow.
• That undertone shows up stronger when placed next to other finishes. A gray with a green undertone might look totally neutral until you pair it with a red-toned wood floor, then suddenly it screams “minty green.”
• Whites are the trickiest of all. Some whites lean warm (yellow, cream, beige) while others lean cool (blue, gray). Put the wrong white next to your trim or cabinets, and it can look dingy or stark.

Designer Tips for Spotting Undertones:

• Never look at one paint swatch in isolation. Always compare at least three “similar” colors side by side. The undertone will become obvious by contrast.
• Hold the swatches up against your fixed elements (flooring, counters, cabinets). If you see a clash right away, that undertone isn’t your friend.
• For whites, grab a “pure bright white” swatch and hold it next to the white you’re testing. The difference will jump out, your “neutral” white might look suddenly creamy or icy.

Beginner-Friendly Trick:
Take a piece of printer paper and hold it against your paint sample. Does your “neutral gray” suddenly look purple? Does your “perfect beige” turn peach? That’s the undertone revealing itself.

Why This Matters:
Getting undertones wrong is the #1 reason people end up repainting. A cool gray next to warm oak floors looks cheap and mismatched. A warm beige next to cool marble countertops looks dirty. When you align undertones, the whole room feels harmonious, even if you only changed the paint.

Always, Always Sample First

This is the single biggest difference between homeowners and designers. A color in the store or on Pinterest won’t look the same in your home. Sampling saves you time, money, and frustration.

Different Ways to Sample

• Sample Pots: Buy a sample size of paint and brush it directly onto your walls. Paint a 2×2 ft square, ideally in multiple spots around the room.
• Foam Boards: Paint poster boards or foam boards instead of your wall. You can move them around and see the color in different lighting, without committing.
• Peel-and-Stick Samples: Many brands now sell large, removable swatches. These are easy, clean, and let you move them from wall to wall.
• Pro Trick: Always test on at least two different walls, the one with the most natural light and the one with the least.
• Beginner Breakdown: A color that looks perfect on one wall might feel too dark on another. Move your samples around before deciding.

Test Colors in Real Lighting

Lighting can make or break your color choice.

• Natural Light: North-facing rooms tend to read cooler and shadowed. South-facing rooms are warmer and sunnier. East-facing rooms glow in the morning, west-facing glow in the afternoon.
• Artificial Light: Bulb temperature matters! Soft white bulbs (2700K) make colors feel warmer, while daylight bulbs (5000K) bring out cooler tones.
• Pro Trick: Look at your samples at three times of day: morning, midday, and evening.
• Beginner Breakdown: Don’t decide at night under yellowish lamp light, you’ll regret it when the sun comes up.

Consider the Mood You Want

Paint doesn’t just look good—it sets the tone for the whole space.

• Cool Colors (blues, greens, soft grays): Calm, refreshing, restful. Great for bedrooms, bathrooms, or offices.
• Warm Colors (beiges, creams, terracottas): Cozy, welcoming, grounding. Perfect for living rooms and dining rooms.
• Dark & Moody (navy, forest green, charcoal): Dramatic, chic, and intimate. Try in powder rooms, dens, or accent walls.
• Beginner Breakdown: Close your eyes and imagine how you want the space to feel. Energizing? Relaxing? Sophisticated? Use that emotion to guide your paint family.

Pay Attention to Sheen

Finish affects not only how your paint looks but also how it performs.

• Flat/Matte: Soft, hides imperfections, harder to clean. Best for ceilings.
• Eggshell: A touch of sheen, easy to wipe down. Designer go-to for most walls.
• Satin: Slightly shinier, durable for kitchens, baths, and playrooms.
• Semi-Gloss/Gloss: Reflective, bold, and super durable. Best for trim, doors, or accent features.

Beginner Breakdown: If you’re not sure, eggshell for walls and satin for trim is the safest bet.

Narrow Down the Options the Smart Way

Don’t take home 50 swatches. Instead, pick one color family and test the siblings.

• Pro Trick: Paint companies group colors on strips for a reason. Choose a strip you love, then sample one shade lighter and one darker than your favorite.
• Beginner Breakdown: Think of it like Goldilocks. One might feel too light, one too dark, and one just right.

Look at the Big Picture

Your walls don’t exist alone. They meet the ceiling, trim, and floor, and they also connect visually to the next room.

• Pro Trick: Sample your paint where it touches baseboards and trim to make sure they work together. Bright white trim can actually look harsh against certain wall colors.
• Beginner Breakdown: Place samples at corners and edges, not just the middle of the wall. That’s where the color will actually live day to day.

Common Mistakes to Avoid

• Choosing in the store without testing at home.
• Forgetting about undertones.
• Only looking at the color at one time of day.
• Picking trim that’s too bright.
• Painting before furniture/fabrics are chosen (always choose paint last!).

Quick Cheat Sheet by Room

• Living Rooms: Balance your largest fixed pieces (floors, sofas). Go neutral and layer in color with decor.
• Bedrooms: Muted tones and soft neutrals are calming. Avoid super bright walls unless you want an energizing space.
• Bathrooms: Lighting is tricky here, sample under your actual bulbs before committing.
• Kitchens: Warmer whites tend to be more timeless; avoid anything too stark unless your cabinetry is equally bright. Pay attention to undertones of cabinetry, especially if the same color family.

Final Thoughts

The “perfect” paint color doesn’t come from guessing at the store, it comes from a process. When you start with your existing finishes, test multiple samples in your lighting, consider undertones, and think about mood, you’ll land on a shade that makes your whole space sing.

Take your time, sample generously, and let your walls tell the story you want. The right color doesn’t just look good, it makes your home feel like you.

👉 Curious about some of my Go-To paint colors? I made a list of my top 3 here.