| Source | Crayola® | CSS3 | CSS4 | 
|---|---|---|---|
| #cecbbf | #cdc5c2 silver | #c0c0c0 silver | #c0c0c0 silver | 
| #a29f93 | #95918c gray | #a9a9a9 dark gray | #a9a9a9 darkgrey | 
| #757266 | #757575 sonic silver | #696969 dim grey | #696969 dimgrey | 
| #585549 | #414a4c outer space | #556b2f dark olive green | #556b2f darkolivegreen | 
| #312e24 | #414a4c outer space | #2f4f4f dark slate gray | #2f4f4f darkslategrey |