Words of our SATGURUMA JI about why She wears orange colour:

Mataji, why other Avatars use other colours of Tunic and clothes and you, even being so beautiful and woman, we have only seen you wearing white, orange, an orange red and even garnet but never other colors?

Om TATri Om, my love, It is like this: 
I have a favorite color that is Turquoise and then, at the level of resonance to dress, I resonate with white and Black! More White indeed! In the same way since I was Named Karma Swamini in 2007... 2008 (I do not remember exactly), I have tried to use orange in practices, one because of what it means and another because it stays clean longer than white! 

And then, at the end of 2015, beginning of 2016, I received Sanyasi Diksha from a Siddha Tradition, where they dress orange and then the Maha Diksha of the classic Sampradaya of my Guruji Shankaracharya Swaroopananda Saraswathi who also for being one of the Sampradayas of the Sanatan Dharma most important in all of India and following the Vedanta culture orthodoxly, beyond being and living TATri, and they know it, I respect what it implies as a woman, to be respected, embraced and received by a Classical Sampradaya in India

So others use other colors because unless they are Sanyasi, they do not need to wear any specific color by tradition. 

I mean... like many teachers, they are not Sanyasis of any Indian Tradition! Some I have seen they have degrees that at a certain age, any being who does evident service can apply. For this, you should consider investing between 20 to 30 thousand dollars for the appointment and recognition of Mahamandaleswar / Mahamandalacharya of an Akhada since according to those who organize, this is the expense that they will have with a Bhandara to feed between 3,000 to 8,000 thousand sadhus that make up the majority of the members of a complete Akhada. This is more than anything an honorary Degree and more political than spiritual and you must invest as an applicant, this sum in the akhada that accept to name you, and that's it. But they do not require to use any specific color! Only that he does evident service to society with a spiritual background. 

So basically other Masters have no problem using different colors and in my case I am still happy 😁 Using different shades of Orange, but Orange at last! Only this my love! But as I said above, my favorite colour is Turquoise... 😊✨