| Clue | Source | Date |
|---|---|---|
| Purity or intensity as a colour quality, especially in television (6) | ||
| Colour, in Greek (6) | ||
| Colour, in Greek | The Guardian Weekend | 27 Jan 2024 |
| Intensity of color | New York Times | 14 Mar 2021 |
| Hour in deep sleep showing quality of shade | ||
| Measure of a color's purity | The Washington Post Sunday | 27 Oct 2019 |
| Purity of a color | Premier Sunday | 10 Mar 2019 |
| Color classification quality | ||
| Color classification quality | ||
| Color quality | ||
| Color classification quality | ||
| Color intensity | ||
| Color. | ||
| Color intensity. |