The trade offs here are color-blind users.
Exploring UI of map view in Yelp-like apps
Pavithra Aravindan
377

Most color blind folks do not have issues with differentiating shades of the same color, and instead have issues differentiating different colors. Your current shade system would probably work fine for most color blind users. :) In the future, considering running your designs through a color-blindness emulator to check!

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