Oblate Sisters of Providence

The Oblate Sisters of Providence are the first congregation founded by women of color to minister to persons of color:

https://oblatesisters.com/our-history

Article discussing their foundress, and the need for Vocations from 2017:

http://darkroom.baltimoresun.com/2017/07/waiting-for-a-miracle-with-the-oblate-sisters-of-providence/#1

One of their foundresses separated from the congregation, and helped found the Sisters, Servants of the Immaculate Heart of Mary in Michigan. 

Mother Lange Guild:

(Founder's canonization process):

https://www.motherlange.org/

They have a sister with an Hispanic name, so the membership may not be restricted to women of color. 

Vocations Link:

https://oblatesisters.com/the-process