Painting Over a Dark Color
By Lemoon's Painting
To cover a dark wall with a lighter color, the old paint is checked and cleaned, any ridges from old tape lines are sanded, and a high-hiding primer goes on before the new color. Expect a primer and two finish coats in most cases, with the edges cut in on every coat so the old color does not ghost through around the corners.
Deep colors go in and out of favor. A navy bedroom, a red dining room, a charcoal feature wall or a dark green study can look wonderful for years and then, one day, the room needs to be light again. Perhaps the house is being sold, perhaps a grown child’s room is becoming an office, perhaps the color has just run its course. Whatever the reason, going from dark to light is one of the more demanding repaints in a house, and it goes better when you know why.
Why is a dark color hard to cover?
Paint hides what is underneath by scattering light with its pigment before the light can reach the old surface. Pale colors rely on white pigment to do that, and they do it well over a similar shade. Over a deep, saturated color, the contrast is so high that a single coat cannot fully stop the old color showing. The result is a wall that looks blotchy, slightly pink or slightly gray, depending on what was there before.
Some old colors are worse than others. Reds and deep oranges are notoriously stubborn, followed by navies, purples and saturated greens. Charcoal and black are dark but often cover a little more predictably.
First, check what is on the wall
Before any primer is opened, the existing dark paint is checked, because deep colors have quirks of their own.
- Does color come off on a damp cloth? Deep colors are made with a lot of colorant, and in a flat or matte finish they sometimes rub off or mark. A wall that leaves color on a cloth needs a thorough wash and a primer that seals it, or the old color can work into the new coats.
- Is it glossy? A deep satin or semi-gloss has to be scuff-sanded so the primer grips.
- Are there ridges? Where an accent wall was taped, there is often a raised ridge of paint along the corner and ceiling line. Under a light color, those ridges cast a shadow and look like a line drawn around the old wall. They are sanded flush.
- Is the home old? In a house built before 1978, the layers under the dark color may include lead paint, which changes how a wall may be sanded. Ebenezer is EPA lead-safe (RRP) certified, so that is planned before work starts.
The right primer
Over a dark wall, primer is not optional. A high-hiding primer is designed to block out what is underneath more efficiently than finish paint, and it costs the job less time than an extra coat of the finish color would. The tint of the primer depends on where the color is going:
| Going to | Primer usually used |
|---|---|
| White or off-white | White high-hiding primer |
| A light color with a clear hue | White primer, or one lightly tinted toward the new color |
| A mid-tone color | Primer tinted toward the new color |
| Another deep color | Primer tinted gray or toward the new color, at the right depth |
If the dark wall has stains, crayon or marks that bleed, a stain-blocking primer is used instead, at least on those areas.
How many coats will it take?
In most cases, a primer and two finish coats. Sometimes a third finish coat is needed with very stubborn colors, especially when the new color is a clean, bright white. The test is to look at the wall in raking light from the window after each coat has dried. Any area that looks slightly darker or slightly tinted needs another pass.
Why the edges ghost
The most common flaw in a dark-to-light repaint is picture framing. The middle of the wall looks right, but a darker band runs along the ceiling line, down each corner and around the outlets and window casing. It happens because those areas are cut in with a brush, which lays on a thinner film than a roller. If the edges are cut in only on the first coat and the rest of the wall gets two coats, the edges have had less paint.
The cure is to cut in fresh on every coat, primer included, and to roll as close to the edges as possible so the roller texture blends into the brushed band.
Ceilings and trim next to a dark wall
When a dark wall is painted light, the trim and ceiling beside it can suddenly look tired. A ceiling white that looked bright against navy can look dingy next to a pale gray. It is worth looking at the trim and ceiling in the same visit, and deciding whether they are part of the job. That belongs in the estimate, so the plan on paper matches the room you want.
Choosing the new color
Going from dark to light changes how much light the room reflects, so the new color will look brighter than you might expect. If you are choosing a white, choosing the right white paint explains the undertones that matter; for any other color, test a large sample on the primed wall rather than over the old dark paint, because a sample over a dark color is not an honest read.
Getting the room back to light
Older housing in San Diego and the post-war homes of Chula Vista often carry several generations of color on their walls, and a dark top coat is just the most recent. Ebenezer will look at what is there, tell you what it will take to cover it properly, and explain the steps before anything starts. He uses Dunn-Edwards and Sherwin-Williams primers and paints chosen for the job, and he manages every project personally.
If you have a room that is ready to come back from the dark, ask for a free estimate. More about interior painting, or about going the other way with accent walls.
Common questions
Can a paint-and-primer product cover a dark wall in one coat?
Rarely, if ever, when the change is from a deep color to a light one. Products sold as paint and primer in one are thicker and hide better than ordinary paint, but a strong red, navy or charcoal will still show through a single coat of a pale color. Plan on a primer and two finish coats.
Why do the corners still look darker after painting?
That is usually called picture framing. Edges are cut in with a brush, which lays on a thinner film than a roller, so the old color shows through more at the corners and along the ceiling. Cutting in fresh on every coat, rather than only the first, prevents it.
What color primer goes over a dark wall?
For a light new color, a white high-hiding primer, or one tinted lightly toward the new color, is the usual choice. For a mid-tone new color, a primer tinted toward that color can save a coat. The paint store can tint primer, and the right tint depends on the colors involved.
Does it take longer to paint over a dark color?
Yes, mainly because of the extra coat and the drying time between coats. A room that would take two coats over a similar color may need a primer and two or three coats over a deep one. Ebenezer will tell you at the estimate how the old color affects the time.