Why are we reducing Hinduism to saffron when it is so beautifully multi-coloured?

Apology in advance if anyone’s feeling are being hurt by my post.

But, in my home state, different colours are used in different poojas

eg: Red is used in Navratri Pooja or any Pooja of Mother Durga or Kali, yellow attire’s are worn on Basant Panchmi or Lord Vishnu Pooja (sometimes saffron), multi coloured dresses and colours are used during Holi and Chhath puja while saffron is almost never used by commoners except by Pundit ji who wear white, yellow or saffron attire.

Deities in Hinduism also wear different colours eg: White dress of Maa Saraswati, ascetic dress of Lord Shiva, yellow dress of Lord Vishnu, red or golden dress of Maa Durga, green dress of Maa Matangi, blue dress of Radha Rani, etc. I don’t know any deity who wears saffron dress.

Why saffron is being publicised as the colour of Hinduism just like how green is there for Islam even by many leaned people? If possible, kindly try to quote from scriptures while answering.