Color and contrast
Color is the fastest signal on a cover. It arrives before shape, long before type, and far before anyone identifies what the illustration is of. A reader scrolling a category page has formed an impression of your book from its palette alone.
That makes it worth choosing rather than inheriting from whatever your artwork happened to produce.
Value contrast is the one that matters
Here's the distinction that fixes most unreadable covers.
Hue contrast is how different two colors are — red against green, blue against orange. Value contrast is how different their lightness is — how they'd compare in a black-and-white photo.
Type legibility depends almost entirely on value. Red text on a green background has enormous hue contrast and is nearly unreadable, because both sit at a similar lightness. The letters vibrate and blur.
The test: desaturate your cover. If the title still leaps out, your contrast is real. If it sinks into the background, you were relying on hue and it will fail at thumbnail size, in a black-and-white search result, and in the eyes of any color-blind reader — around 8% of men.
Do this alongside the thumbnail test; they catch different faults.
In the Cover Maker. The grayscale panel in Cover check runs the desaturation test for you, and Match Front Cover pulls the dominant colors straight out of your artwork so the spine and back belong to the same cover. Start a book → · about the Cover Maker
Limit the palette
Two or three colors. That's the whole rule, and it's the difference between designed and accidental.
A useful structure: one dominant color holding most of the cover, one secondary supporting it, and one accent used sparingly at the point you want the eye to land — often the title.
Covers that fail here usually didn't choose four colors; they simply accepted everything the artwork contained. AI-generated art is particularly prone to this, arriving with a dozen colors and no hierarchy. Pulling the palette back — regenerating with a stated color scheme, or choosing type colors from the two dominant tones — is often the single change that makes a cover look professional.
What color says about genre
Roughly, and with plenty of honourable exceptions:
| Palette | Reads as |
|---|---|
| Red, black, white | Thriller, danger, urgency |
| Teal and orange | Contemporary thriller, action |
| Bright saturated flats | Rom-com, cozy, upbeat contemporary |
| Dark jewel tones with metallics | Fantasy, romantasy |
| Muted earth tones | Literary, historical |
| Near-black with one accent | Horror, dark thriller |
| White with a single graphic | Literary, non-fiction, "serious" |
Pale, washed-out palettes have been on the way out — the current direction is bolder and more saturated, with strong color doing work that fussy detail used to.
Two things print does to your colors
Screens and paper disagree, and the disagreement always goes the same direction.
Print is darker. Your screen emits light; paper reflects it. Colors that look rich on screen come back muddier, and this hits dark covers hardest — a moody near-black cover can lose all its detail. If your artwork is dark, lift it before printing.
Cream paper tints everything. Choosing cream stock for the interior doesn't change the cover, but if your cover art is very light or has large white areas, the white of the cover stock is what you'll get — worth seeing on a proof. See White or cream paper.
If your cover is mostly one flat color, order a physical proof before committing. Large flat areas show banding and color shift more than busy illustration does.
Pulling colors from your artwork
The most reliable way to get a coherent cover is to take your palette from the art rather than choosing independently. A title in a color lifted from the image looks intentional; a title in a color that isn't anywhere in the image looks stuck on.
The Cover Maker does this for you — Match Front Cover reads the dominant colors out of your artwork and offers them as swatches for the spine and back, so the whole wrap holds together instead of the spine being an approximate guess. See Matching cover colors.
Make yours
Everything here is built into the tools, and they are free to use: name your book, bring your manuscript or your artwork, and work as long as you like. You only pay when you want the files without the preview watermark.
Next: Composition and negative space · Back to What makes a cover sell