| Formula | System | Code | Alternate | Name | Suffix | Color Deck |
|---|---|---|---|---|---|---|
| 928NP422C | 928 | P422C | PANTONE GRAY | A | ||
| 928NP422 | 928 | P422 | GRAY | A | ||
| 928NP421C-A1 | 928 | P421C | A1 | FLAT PANTONE LT GRAY | A | |
| 928NP421C | 928 | P421C | PANTONE LT GRAY | A | ||
| 928NP421 | 928 | P421 | GRAY | A | ||
| 928NP414 | 928 | P414 | GRAY | A | ||
| 928NP413 | 928 | P413 | GRAY | A | ||
| 928NP409 | 928 | P409 | GRAY | A | ||
| 928NP406 | 928 | P406 | GRAY | A | ||
| 928NP402 | 928 | P402 | GRAY | A |