Color Palette Generator
This generator turns one six-digit sRGB HEX value into a compact set of predictable color variations for an early design exploration.
Generate a small HEX palette from one base color
Enter a six-digit HEX color and create lighter, darker, complementary, and neutral suggestions.
Processing mode: browser-only for this tool. The interface does not require a server upload to perform its transformation.
Start with a focused browser tool
This generator turns one six-digit sRGB HEX value into a compact set of predictable color variations for an early design exploration.
Designed for: Designers and frontend developers creating an initial color-system direction.
How to use this tool
Enter a value such as #336699. Generate returns the base color, lighter and darker blends, a complementary hue, and a neutral gray. Check the resulting colors in the actual interface before adoption.
How the result is produced
The browser parses the HEX channels, blends the base color toward white or black, rotates hue in an HSL approximation for the complement, and formats the results back to six-digit HEX values.
Test examples
#336699 produces a darker blend, lighter blend, complementary suggestion, and neutral companion. The output is a starting palette, not a claim that the colors meet an accessibility target.
Limitations
The generator uses a simple sRGB/HSL approximation and does not model perceptual color spaces, brand guidance, contrast for every text size, color vision deficiency, print profiles, or wide-gamut displays.
Privacy and processing
The color value is processed locally in the browser and is not uploaded.
Related guide
A generated color palette still needs accessibility review
Related tools in this category
Documentation
- https://www.w3.org/TR/css-color-4/
- https://www.w3.org/WAI/WCAG22/Understanding/contrast-minimum.html
This page describes the implementation shipped with the NOFYI Tool Factory. Review the interface output before using it in a production workflow.