Reply To: Recolor 1-Color Artwork in InDesign CC?

This is something I have been asking Adobe about for 15 years. PageMaker could do it in the early 90s.

The best solution I know (if you don’t want to have the actual vectors in InDesign, as Colleen’s method would do) is to color it with a spot color in Illustrator… call it “ThisColor” or anything else special. Then, use InDesign’s ink alias feature to alias that to whatever real color you want to use.

See:
https://creativepro.com/alias-one-color-swatch-to-another.php
and
https://creativepro.com/making-a-process-color-mixed-ink-group.php