What a color palette is and why you need one

A color palette is a set of colors you choose to use together in a design — whether that's a website, a document, a presentation, or artwork. Instead of picking colors one at a time as you go, you decide on your palette first, then stick to it. This keeps your work looking intentional and consistent rather than scattered.

You need a palette because human eyes notice when colors clash or when a design uses too many competing colors. A palette also saves you time: once you have chosen your colors, you stop second-guessing yourself on every new element. If you are designing something for a business or brand, a palette makes sure everything — your website, your social media graphics, your printed materials — looks like it belongs together.

The most useful palettes have between three and five colors. One will be your dominant color (the one that covers most of the space), one or two will be secondary colors, and one will be an accent color that draws attention to important things. This structure is simple enough to remember and flexible enough to work across different projects.

Key Takeaways

  • A working color palette usually has three to five colors: one dominant, one or two secondary, and one accent color that stands out.
  • You can build a palette by starting with a color you like, then using a color wheel or a palette generator tool to find colors that work with it.
  • Complementary colors sit opposite each other on the color wheel and create high contrast; analogous colors sit next to each other and feel harmonious.
  • Test your palette by applying it to a real mockup — a sample webpage, document, or design — to see how the colors actually look together in context.
  • Save your palette as hex codes (like #FF5733) or RGB values so you can use the exact same colors across all your projects.

Start with one color you already like

The easiest way to build a palette is to begin with a single color that you know you want to use. This might be your brand color, a color from a logo, or simply a color that appeals to you. Write down the hex code or RGB value of that color so you can reference it exactly — do not rely on memory, because colors look different on different screens.

If you already have a color in mind but do not know its hex code, you can find it by taking a screenshot of the color and uploading it to a color picker tool. Google's built-in color picker (search "color picker" in Google) lets you paste an image and click on a color to see its hex code. Other tools like Canva's color picker or Pixlr's eyedropper work the same way.

Once you have your starting color locked in, you have two main paths forward: use a color wheel to find related colors, or use an automated palette generator. Both work; the color wheel teaches you why colors work together, while a generator is faster if you just want results.

Use a color wheel to find harmonious colors

A color wheel is a circular diagram that shows how colors relate to each other. The most common version divides colors into 12 sections: reds, red-oranges, oranges, yellow-oranges, yellows, yellow-greens, greens, blue-greens, blues, blue-purples, purples, and red-purples. Colors next to each other on the wheel are similar; colors across from each other are opposites.

To use a color wheel, find your starting color on the wheel, then look at the colors around it. Analogous colors are colors that sit next to each other — for example, blue, blue-green, and green. These combinations feel calm and harmonious because they share similar undertones. If you want your design to feel peaceful or unified, pick your dominant color and choose one or two analogous colors as your secondary colors.

Complementary colors sit directly across from each other on the wheel — for example, blue and orange, or red and green. These pairs create high contrast and energy. If you want your design to feel bold or to make certain elements pop, use complementary colors. Your dominant color might be blue, and your accent color might be orange. The orange will immediately draw the eye because it is so different from the blue.

You can also use a triadic scheme, which picks three colors evenly spaced around the wheel — for example, red, yellow, and blue. Triadic palettes are vibrant and work well for designs that need to feel playful or energetic. Start with your main color, then find the two colors that are roughly 120 degrees away from it on the wheel.

Use a palette generator for faster results

If you do not want to learn color theory, a palette generator does the thinking for you. These tools let you enter your starting color and instantly show you several complete palettes that work with it. Popular generators include Coolors, Adobe Color, and Canva's palette tool — all are free and work in your web browser.

To use Coolors, go to coolors.co, enter your starting color's hex code in the search box, and the tool generates five palettes that include your color. Each palette shows five colors together. You can lock your starting color in place and hit the spacebar to generate new palettes until you find one you like. When you find a palette you want to keep, click the export button to download the hex codes.

Adobe Color (color.adobe.com) works similarly but also lets you upload an image and extract a palette from it. If you have a photograph, a brand logo, or artwork you want to match, upload it and Adobe will pull out five colors that work together and appear in that image. This is useful if you are designing something that needs to coordinate with existing visual material.

The advantage of a generator is speed; the disadvantage is that you learn less about why the colors work. If you use a generator, take a moment to look at your finished palette and notice which colors are analogous and which are complementary. This builds your intuition for future palettes you create by hand.

Test your palette on a real mockup

Before you commit to a palette, apply it to something that looks like your actual project. If you are designing a website, create a simple webpage mockup with a header, some text, buttons, and images using your palette colors. If you are designing a document or presentation, create one sample page. This step matters because colors look different depending on context — a color that seems perfect in isolation can feel wrong when it covers a large area or sits next to other colors.

Pay attention to contrast, especially if your design includes text. Dark text on a light background or light text on a dark background is readable; dark text on a dark background or light text on a light background is not. If you are unsure whether your text will be readable, use a contrast checker tool like WebAIM's contrast checker (webaim.org/resources/contrastchecker). Enter your text color and background color, and the tool tells you whether the contrast meets accessibility standards.

Also notice how your accent color looks when it is small versus when it covers a large area. An accent color that looks great as a button might feel overwhelming if it is the background of an entire section. If this happens, use your accent color sparingly — only on buttons, links, or small highlights — and use your secondary colors for larger areas.

Save your palette as hex codes or RGB values

Once you have settled on your palette, write down the exact color values so you can use them consistently across all your projects. The two most common formats are hex codes (like #FF5733) and RGB values (like rgb(255, 87, 51)). Hex codes are shorter and easier to copy into design tools; RGB values are what most screens actually use to display color.

Create a simple document — a text file, a spreadsheet, or even a note on your phone — that lists each color in your palette along with its hex code and RGB value. Give each color a name that makes sense to you: "Primary Blue", "Accent Orange", "Light Gray", "Dark Text". This makes it easy to remember which color to use where.

If you are designing for a website or app, you can also save your palette as CSS variables. This is a more advanced step, but it means you can change your entire color scheme by editing a few lines of code instead of hunting through your design for every instance of a color. A CSS variable looks like this: --primary-blue: #0066CC. Your developer can then use that variable throughout the code, and changing the hex code in one place updates the color everywhere.

Common mistakes to avoid

The most common mistake is using too many colors. A palette with seven or eight colors stops being a palette and becomes a rainbow. Stick to three to five colors, and if you need more variety, use lighter and darker versions of your existing colors instead of adding new ones.

Another mistake is choosing colors that are too similar. If your dominant color and secondary color are both shades of blue, your design will feel flat and boring. Make sure your colors are different enough that they serve different purposes — your dominant color for large areas, your secondary color for contrast, and your accent color for emphasis.

A third mistake is ignoring how colors look on different devices. A color that looks perfect on your phone might look different on your laptop or on a printed page. If your design will be printed, ask your printer for color specifications and test a sample. If your design is digital, view it on at least two different screens before you finalize it.

Frequently Asked Questions

Can I use more than five colors in my palette?

You can, but it becomes harder to keep your design looking cohesive. If you need more colors, add lighter and darker versions of your existing colors instead of introducing entirely new hues. For example, if your palette includes blue, add light blue and dark blue rather than adding purple or teal.

What if I like two colors that do not work together?

You can often make them work by adjusting the saturation or brightness of one or both colors. A very bright red and a very bright green clash, but a muted red and a muted green can work together. Use a color wheel or generator to find a version of one color that harmonizes with the other.

Should my accent color always be bright?

Not necessarily. An accent color just needs to stand out from your dominant and secondary colors. If your dominant color is bright, your accent can be dark. If your dominant color is dark, your accent can be bright. The key is contrast, not brightness.

How do I know if my palette is accessible for people with color blindness?

Use a color blindness simulator like Coblis (color-blindness.com) or the Sim Daltonism app. Upload a screenshot of your design and the tool shows you how it looks to someone with different types of color blindness. If important information relies only on color (like a red button versus a green button), add text or icons so the meaning is clear without color.

Can I change my palette later if I do not like it?

Yes, but it is easier if you saved your colors as hex codes or CSS variables. If you used hex codes, you can search and replace them across your design files. If you used CSS variables, you only need to change the color values in one place. If you hard-coded colors directly into your design, changing them takes much longer.