Foam-Core Paint Samples

The Problem

Every paint color carries an undertone the chip doesn't show: the gray that reads purple by sunset, the white that goes pink at 4 PM, the warm beige that turns khaki next to oak floors. A two-inch chip under store lighting knows nothing about your windows, your floors, or what your living room does in the evening.

The Technique

1. Skip the chip. Buy the sample pot and paint two thick coats onto a piece of foam board around two feet square. Now the sample is portable and opaque enough to trust.
2. Move it around the room. Lean it on the wall that gets morning light, then the one that gets evening light. Stand it next to the sofa, hold it behind the bookshelf. It will look like four different colors in four spots — that's the information you came for.
3. Wait 48 hours before deciding. Look at it over morning coffee, at sunset, and at night with just the lamps on. A color that works in all of those is the right color; a color that only works in one of them is a chip that got lucky.
4. Check it against what stays. The rug, the pillows, the art, the floors — paint lives next to everything else in the room, and the undertones either cooperate there or they don't.

The Problem

Two things go wrong with the usual way of testing paint. A two-inch store chip is far too small to judge a whole room by, and brushing sample patches directly onto the wall locks each color to one spot in one light — then leaves you prepping over the patches before the real coat goes on.

There's a third problem nobody mentions: store chips are printed flat. If you're planning a satin or high-gloss wall, the chip can't show you what that color does with sheen on it, and sheen changes a color's depth completely.

The Technique

Make your own oversized samples:

1. Buy a tester pot of each color you're considering.
2. Roll the color onto a piece of foam core with a small roller — and use the sheen you actually plan to use, not whatever the store sample came in.
3. Give it two coats, letting the first dry, exactly as you would a wall.
4. Stick the finished sample to the wall with double-stick tape.

Now the sample moves. Carry it to the wall by the window, the dark corner, the hallway — the same color reads brighter in one place and moodier in another, and a large sample shows you that in a way a chip never can. Live with them up for a few days before deciding.

When you've chosen, pull the samples down and paint. The wall underneath is untouched, so there's no patch to prime out first.