Is it ok to use 14/2 wire out of a light in order to wire a receptacle into the ceiling?
Yes, you can do that.
However, one possible catch is GFCI.
Generally speaking, GFCI is now required in many areas, including unfinished basements, workrooms, etc. GFCI is, in most cases, not required for permanently installed lighting fixtures. In addition, GFCI, when used, has to be accessible - not in a receptacle in the ceiling.
Assuming you need GFCI for a receptacle in this room (which is likely but not an absolute), and assuming the circuit is not already GFCI-protected (which is likely the case - lighting circuits are not usually GFCI-protected), that leaves three options:

Install GFCI protection at the breaker or someplace earlier in the circuit.
Install a receptacle but within reach (i.e., on a wall in the first 6', rather than in the ceiling) and put GFCI there.
Use hardwired (permanently installed) lighting instead of plug-in lighting.