Why you need a color palette generator
Manually picking harmonious colors takes a long time and requires knowledge of color theory. Instead of testing dozens of combinations by trial and error, the tool builds a complete, balanced palette from just one color — ready to use for a website, app, or brand identity.
How a harmonious color palette is built
The tool analyzes your chosen base color by Hue, Saturation, and Lightness, then generates complementary colors using color theory relationships like Analogous, Complementary, or Triadic. The result is a complete palette that keeps visual harmony between all the colors.
Steps to use the color palette generator on Fastols
Get a professional color palette in under a minute:
Choose the base color
Pick the color you want to build the palette around, either by typing a HEX code or using the color picker.
Choose the harmony type
Select the color relationship you want (Analogous, Complementary, Triadic, or others).
Preview the generated palette
The full palette appears instantly, with every color and its code.
Copy the codes
Copy the HEX or RGB code of any color with one click, ready for your project.
Practical tips before you start
Before you commit to a color palette for your project, keep these points in mind:
- Pick a base color that reflects your brand identity before generating the palette, since every other color is built around it.
- A Complementary palette works best for elements that need strong contrast, like call-to-action buttons.
- An Analogous palette gives a calmer, more cohesive feel, and suits backgrounds and soft designs.
- Always check the contrast ratio between background and text color to ensure good readability (accessibility).
Try more than one harmony type for the same base color before deciding — each one gives a completely different feel to the final design.
Common use cases
- Building a complete visual identity for a new website or app based on the brand color.
- Choosing harmonious colors for a professional presentation or slide design.
- Quickly generating a color palette for a graphic design project or digital artwork.
- Getting fresh color ideas when you're stuck in the middle of a design project.
Why choose Fastols?
Instant generation
The palette appears the moment you pick the base color
Ready-made codes
HEX and RGB for every color, ready to copy right away
No data stored
Generation happens right in your browser and is never stored on our end
Completely free
Unlimited use with no hidden fees
Frequently asked questions
How many colors does one palette contain?
A palette usually contains 5 harmonious colors built around the base color you choose.
Can I save or share the palette?
Yes, you can copy the color codes directly and use them in any design tool or code you want.
What's the difference between the available harmony types?
Each type relies on a different relationship on the color wheel — for example, Complementary gives strong contrast, while Analogous gives calm harmony.
Does the tool support entering a HEX code directly?
Yes, you can type the HEX code of the color you want directly instead of using the color picker.
Is my data stored with you?
No, the entire generation process happens in your browser and we don't keep any copy of your choices.
Ready to build your color palette?
Try the color palette generator for free right now — no sign-up, no software to install.
Try the color palette generator now