Start by choosing a single color, not five. That one color anchors the design and prevents the canvas from looking like a hodgepodge of unrelated swatches. Depending on your medium, be it a poster, social post, banner, or slide, the initial color might be derived from the message’s tone, the primary photograph, or basic brand directives. Once you have decided on that color, the remaining colors in your palette need to complement it rather than fight for your attention.
A smaller palette usually looks better if each color has a dedicated function. One can serve as the background, one can handle the headline, and one can act as an accent to emphasize a call-to-action button, icon, underline, or small shape. When each color is used indiscriminately, viewers do not know what is important and the design will feel cluttered even if the layout is not busy. So, consider a simple guiding question: where should the eye rest first? The color you want to emphasize should aid in answering this question.
Often the confusion occurs when the colors were picked because they looked good in isolation. A vivid blue, an orangey-red, a dark blue-purple, and a bright-green may have looked nice individually within the color picker, but all of them together make your design look like shouting at you. So, instead of evaluating colors in a color strip, test them in the canvas. See how the colors work behind and around text, alongside and within photos, and near and inside shapes, and also near the edges of the canvas. Colors work differently when surrounded by white space, text, or cropped image segments.
To practice picking three colors for a simple design, try creating a small banner layout that only contains three colors, which include a background color, a headline or text color, and an accent color. Include only one main headline text, one short line of body text, and one visual element, such as a simple icon or vector shape, in the layout. Do not add gradients, shadows, and extra colors for now. Ask the following questions: Is the headline clear or easy to read? Does the accent color lead the eye to the key part? Does the background color support the rest of the content?
Remember, contrast is more important than a colorful palette. A pale yellow headline on a white background looks harmonious, but it is not readable. A red button on a dark blue background can look fancy but may not read at smaller sizes. Since you will likely export the design for digital viewing, try to zoom out and see whether it would still be legible. Colors must perform for the viewer, not just look good in the canvas.
Images are also a good source for palette inspiration, although you should be careful not to pull too many colors. If the image is colorful, choose one or two colors from it and keep the rest of the design muted and simple. A soft background color in the image can help the layout blend together. The key is to pick a color in the image as a background, and then use an accent that will stand out and draw attention to the key date, title, or call-to-action. The goal is to prevent the design from looking like it is mimicking every small detail in the image, as the user will not know what is most important.
A simple palette is not a boring palette. It gives your design the discipline you need. When color has a purpose, you can make text legible, space easier to scan, and hierarchy clear. Rather than searching for an exciting new color, consider removing one from your existing palette. Often, a design looks worse not because there are not enough colors, but because too many are used unnecessarily.