Gardenia Blue (165) is a muted blue colour and is water soluble. It is stable and can be used for a variety of applications. Gardenia Blue is not an approved colour additive under FSANZ.
Stability
| Light Fastness | Good |
| Temperature | Good |
| SO2 Resistant | High |
| Colour at pH | |
| pH 3 | Unstable |
| pH 5 | Blue |
| pH 7 | Blue |
| pH 7-9 | Blue |