How We Chose the Perfect Gray: Using Paint Testers to Find the Right Tone

We usually feel confident picking a paint color, but choosing the right gray for two major living areas—our future dining room, the main hallway, and the living room—made me unusually nervous. We wanted to use the same color throughout for continuity, which raised the stakes. My partner, Sherry, teased me relentlessly about my indecision. I found myself second-guessing every swatch: “I like it… no I don’t… I hate it.”

My hesitation goes back to a middle school bedroom painted in a gray that I thought sounded cool (something dramatic like Cannonball). In hindsight it was too dark, too cold, and felt prison-like. I once covered it up with a bright red Looney Tunes rug and Tasmanian Devil pillows; while that worked then, I didn’t want to rely on eccentric accessories this time.

So we decided to use paint testers before committing. Sherry often recommends this approach to readers who are nervous about color, so I agreed we should try it. We picked three Benjamin Moore grays, all mixed into Olympic Premium No-VOC sampler cans from Lowe’s. The testers are inexpensive and let you see how a color behaves across different lighting conditions and from a distance. Our finalists were Collingwood, Grey Owl, and Moonshine.

Testing the Swatches

For each tester we painted a single coat in several locations: the future dining room and two spots in the family room—one near the TV and another next to a large window. We painted freehand and feathered the edges rather than taping perfect squares. The feathered approach keeps the test patches from becoming noticeable texture squares once we paint over them later.

Testing in multiple places is important because natural and artificial light change how color reads. A paint that looks warm in bright daylight can shift cool and muted under yellow evening lights. With sizable swatches we could actually judge the colors from across the room, which is difficult with only small paper chips.

How Each Color Performed

After living with the samples for a few days in different lighting conditions, one color clearly stood out as our favorite. Moonshine—the soft, slightly silvery gray—became our top pick. It reads as a true gray in our rooms and has a subtle luminosity that keeps the walls from feeling flat. It’s dark enough to make white trim and moldings pop, but not so saturated that it competes with bolder curtains, art, and accessories.

Collingwood almost won us over, but it skewed too warm and tan in our light. It reminded us of a Sand White color we used in a previous home; we liked that tone then, but it wasn’t gray enough for this project. Grey Owl, the third option, read a bit green-blue in our spaces. In our home’s lighting it risked appearing as a muddy blue-gray rather than a neutral gray, and that’s a direction we wanted to avoid since we’d had similar tones that felt less timeless.

Why Paint Testers Work

Paint testers let you see how a hue reacts to natural light throughout the day and artificial light at night. They help you judge undertones—whether a gray leans warm, cool, green, or blue—so you can avoid surprises. Testing large swatches in the actual rooms is the best way to evaluate scale and distance, as well as how the color complements existing furnishings and trim.

We left our testers up for nearly a week, which was long enough to confirm our preference. That timeframe gave us morning, afternoon, and evening perspectives and allowed us to live with the color rather than simply glance at it. Some people keep test swatches up for longer if they’re still undecided, but a week usually gives a reliable read.

The Next Step

With Moonshine chosen, our next task is to paint the two largest rooms and the connecting hallway. We’ve already started, but with baby care and blog responsibilities, the job may take a few days. We plan to paint the trim white to make the gray pop and then bring in curtains, artwork, and accessories that will complement the new neutral backdrop.

If you’re choosing a gray, consider using affordable paint testers and applying them to large areas of your actual rooms. Check the colors under different light and at different times of day. That method helped us move from indecision to confidence—Sherry was right: sometimes the simplest step is to pick one and do it, but testing first made that choice feel much safer.

Have you used paint testers to pick a color? Did they confirm your instincts or lead you somewhere unexpected? How long do you usually leave test swatches up before finishing the job? We leave ours up just long enough to see them in real life—then we get painting.