Terms of use

Last updated 5 November 2026.

603010rule.com is a free tool provided as is, for planning and inspiration. Colors on screen are approximate. Check physical paint, fabric or print samples before you buy or commit to a design, and follow each maker's instructions.

You are free to use the palettes you make, including in commercial work. The site's text, drawings and code belong to Agile LLC (Agile Media Agency) and may not be copied wholesale.

We are not responsible for decisions or purchases made from what the tool shows. These terms may change; the date above shows the latest version.