> ## Documentation Index > Fetch the complete documentation index at: https://docs.tartini.com.br/llms.txt > Use this file to discover all available pages before exploring further. # The gradient > The system's only authorized decorative use, with the list of what it can and cannot do. Terracotta on one side, cobalt on the other, 135 degrees between the two. It marks a single meaning: here the two sides touched. Gradient bar from terracotta, the team's side, to cobalt, the AI's side *** ## Meaning It is the easiest rule to break in the system, because the gradient is beautiful, and every comfortable use of it (section background, top banner, highlight card, colored icon) erases the meaning it carries. *** ## Uses **Can:** * The symbol's node. * A conversation handing off between team and AI, in both directions. * The Sotto mark. * One primary button, at most one per page. **Cannot:** * Section, card, or header background. * Decorative banner, border, or divider. * Text in gradient. * Two gradient elements in the same view. * Gradient with a third color. *** ## Highlight without an encounter When all that's needed is a highlight, there is light cobalt #7FA3FF over ink and deep cobalt #1A4FD6 over paper. This is what the homepage uses in the verb of the headline and in the closing line, both in flat blue. | Over paper | Over ink | | ----------------------------------------------------------- | -------------------------------------------------------- | | Deep cobalt, #1A4FD6 | Light cobalt, #7FA3FF | | "The AI platform that **works** for your customer service." | "The platform that **works** for your customer service." | ## Related topics - [What is never done](/en/marca/o-que-nunca.md) - [The symbol](/en/marca/simbolo.md) - [The third tone](/en/marca/a-terceira-nota.md)