The 'Hello my name is...' website homepage: https://www.hellomynameis.org.uk/ can be referenced using Granger as the author. The reference using Harvard Cite Them Right 12th edition is:
Granger, K. (2025) Hello my name is... : A campaign for more compassionate care. Available at: https://www.hellomynameis.org.uk/ (Accessed: 5 February 2025).
If you want to cite and reference the YouTube videos on this site, they should be referenced as videos via the YouTube site, following our guidance here: https://libraryfaqs.worc.ac.uk/faq/279289