How to Keep Track of Paint Colors, Sizes and Measurements for Your Home

The easiest way to keep track of paint colors is to write down five things for every room the day you paint it: the brand, the color name and code, the sheen, the room and surface, and the date. Then take a photo of the can label. Keep it all in one place you already check, like your phone's notes or photos, and you can buy a close match years later without guessing.

Most people skip it because the paint is still wet and the can is still sitting right there. Then two years later a chair scuffs the hallway, the can is gone, and nobody remembers if it was "Alabaster" or "Agreeable Gray."

Below is a checklist you can copy, a sample entry, the measurements worth saving while you're at it, and how to set things up so you can find them again.

Why your memory (and the can) won't be enough

Paint looks simple until you need more of it. A store needs exact details to match what's on your wall, and "the light gray in the bedroom" isn't enough.

Here's what usually goes wrong:

• The can gets thrown out or ruined. Drips cover the label, or the can rusts in a damp garage.
• Similar colors blur together. Many homes have a few different whites or grays. Public Storage's guide to storing paint notes that similar colors can be hard to tell apart after several months or a few projects.
• The sheen is forgotten. Even if you get the color right, the wrong finish can show. A satin patch on an eggshell wall can catch the light differently.
• The person who painted moves on. A previous owner, a landlord or a hired painter knew the details, and they left with them.

A two-minute record covers all four.

How to keep track of paint colors: what to record for each surface

Think of it as one small "paint code record" per surface. A wall and its trim usually get different paint, so they get separate entries.

The checklist

If you only have time for one thing, take the label photo. A clear shot of the label usually shows the brand, product, color, sheen and the tint formula the store's machine used. That formula is a very precise record to have.

Write down the sheen exactly as the can says it

Sheen names aren't standardized. One brand's "eggshell" isn't always another brand's. Some lines use names like "pearl," "velvet" or "low-lustre." Sherwin-Williams' sheen guide, for example, lists finishes from flat and matte through "Eg-Shel," pearl and semi-gloss up to high gloss, and suggests different ones for different rooms and surfaces.

So copy the exact word printed on the can, along with the product line. "Satin" alone is less useful than "SuperPaint, satin."

A sample record

Here's what a full entry might look like in a notes app:

Main bedroom walls. Sherwin-Williams Duration interior, Alabaster SW 7008, eggshell. Painted April 2026. Bought at the paint store on Main St. About a third of a gallon left, basement shelf. Trim is separate, see "bedroom trim."

It's plain, it's searchable, and anyone in your household could use it.

How to remember paint color used in a room you didn't paint

Renters and new homeowners often start with no records at all. You can still piece it together.

1. Look for leftover cans. Check the garage, basement, under sinks and utility closets. Previous owners sometimes leave them behind. Photograph every label before you move anything.
2. Check behind switch plates and inside closets. Some painters write the color on the back of a switch plate or inside a closet door. It's worth a look.
3. Ask. Landlords, property managers and previous owners sometimes have a list. If a painter did the work, they may have records too.
4. Get a chip matched. If none of that works, take a small chip of paint (from somewhere hidden, like inside a closet) to a paint store. Many stores can scan a sample and mix a close match.
5. Record the result right away. Once you have a match, write it down with the checklist above so you don't have to do this again.

If you're renting, check your lease or ask before you paint or touch up. Some landlords want a specific color used.

A word on phone color readings

It's tempting to snap a photo of a wall and match it from the picture, or use a color-picker app. Treat those results as rough guides, not exact matches.

A phone camera adjusts color automatically based on the light in the room. The same wall can look warm under lamps at night and cool in morning daylight. Every screen also shows color a little differently, depending on the display and brightness. Paint companies say this openly. Benjamin Moore's return policy notes that on-screen and printer color representations may vary from actual paint colors, and it won't accept returns for "digitally misinterpreted colors."

That's why the code and the label photo matter more than a photo of the wall. A photo of the room is still useful. It reminds you what the space looked like and which surfaces were painted. Just don't rely on it to buy paint.

Before you repaint a whole wall from a match, try a small sample patch in an out-of-the-way spot. Let it dry fully, then look at it in daylight and in evening light.

Save the measurements while you're at it

Painting day is a good time to grab other numbers you'll want later. They come up when you buy blinds, rugs, curtains or furniture, often while you're standing in a store. Keeping home measurements on your phone means you can check them right there.

Useful ones to record:

• Windows. Width and height. For blinds that sit inside the frame, measure the width at the top, middle and bottom, and note the smallest number. Write down whether you measured inside or outside the frame.
• Wall lengths. Handy for shelves, art and sofas. Note where outlets, vents and radiators sit.
• Doorways and stair turns. These are what can stop a new sofa or mattress from getting into the room.
• Floor area per room. For rugs, flooring or a paint estimate next time.
• Ceiling height. Matters for curtains, tall bookcases and ladders.
• Alcoves and nooks. The odd space you want a cabinet or a desk to fit.
• Existing furniture. The bed, sofa and dining table, so you can tell if a new rug or side table will work around them.

Two habits make measurements far more useful. First, write the unit every time (inches or centimeters). Second, say which way you measured, like "width x height" or "wall to wall at the floor." A bare "34 x 61" is a puzzle six months later.

Also note bulbs and small hardware if you think of it. The bulb type in the bathroom fixture and the screw size for a curtain rod are the kind of thing you'll need at the hardware store. For model numbers and appliance details, the same approach works; see this guide to keeping receipts, warranties and model numbers on your phone.

Where to keep it: simple options that work

You don't need a special paint tracker app. The best place is one you already open often. Here are common options, with their trade-offs.

A simple combination works well for most people. Keep one note per room (or one note for the whole home), and take a label photo for each paint. If you're worried about losing a photo among screenshots, add a short line of text with it. That way it shows up when you search. This guide on what to do with screenshots you take to remember things covers that habit in more detail.

Also protect the can itself. Wipe the rim before you close it so the lid seals, and store cans upright somewhere dry. Avoid places with big swings in temperature; Public Storage's guide warns that a garage can get very hot or cold depending on the season. Writing the room and date on the lid with a marker gives you a backup if your phone notes ever go missing.

How to find it again later

A record only helps if you can pull it up in the paint aisle. A few small choices make that easy.

• Use the words you'll search for. Write "bedroom wall paint" rather than just "SW 7008." Put the room name first.
• Include both the name and the code. You may remember "Alabaster" but not the number, or the reverse.
• Keep similar things together. One "Home paint and measurements" note is easier to find than ten scattered ones.
• Name surfaces plainly. "Kitchen cabinets," "hall trim," "front door." Not "project 3."

If you already have scattered notes and can't remember where you saved something, this guide on finding an old note when you only remember part of it walks through search tricks for the common phone apps. Some note apps, EyeNotes among them, also let you search in everyday words, like "what paint did we use in the bedroom," instead of matching exact text.

For the other small things you always need at the wrong moment, like wifi codes, clothing sizes and quotes, the same approach applies. Here's a guide to where to keep the small things you always need later.

A two-minute routine for next time

When you finish a paint job, before you close the can:

1. Take a clear photo of the label, straight on and in good light.
2. Write one line: room, surface, brand, color name and code, sheen, date.
3. Note how much is left and where you're putting it.
4. Grab any measurements you know you'll need for that room.
5. Write the room and date on the lid.

Next time a chair scuffs the wall, a contractor asks what's on the trim or a buyer asks about colors, you'll have the answer in seconds.