Yellow and green are the premier colors of the John Deere brand. It has used them on some of its products -- including some of the most expensive tractors ever made-- since between 1870 and 1880 ...

Caterpillar, or CAT, might be well-known today for its distinctive yellow color and blocky logo, but it wasn't always the company's standard.

The AOL app quietly changed the color scheme of its app from blue to yellow recently. And many who still use AOL are deeply upset by it. Best tech deals 🛍️ $3,500 iPhone possible?