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Free Online UI Color Palette Builder

Generate primary, light and dark variants and select the higher-contrast black or white text color.

Your input stays on this device. Processing is bounded; regex runs in a worker with a two-second timeout.

Result



How to use UI Color Palette Builder
Generate primary, light and dark variants and select the higher-contrast black or white text color.
  1. Set Color.
  2. Run the tool, review the result and its stated limitations, then copy or download if needed.
Example & practical use
Generate primary, light and dark variants and select the higher-contrast black or white text color. The example below demonstrates Color.
Example input:
{
  "color": "#123456"
}
Expected result (relevant fields):
{
  "primary": "#123456",
  "text": "#ffffff"
}
Features & result limitations
Generate primary, light and dark variants and select the higher-contrast black or white text color.
Frequently asked questions
What inputs does UI Color Palette Builder accept?
Color
How should I interpret the UI Color Palette Builder result?
Generate primary, light and dark variants and select the higher-contrast black or white text color.
Where does UI Color Palette Builder process my data?
Inputs are processed locally in your browser. Submitted text is not sent to external services. A successful-run event increments an aggregate tool counter without your input.