Phil,
Your problem statement is VERY confusing.
It sounds like, first of all, you are starting out with an Excel spreadsheet.
Then, it sounds like you've imported/linked that spreadsheet into an Access database.
If my understanding above is correct, then let's completely forget about Excel going forward. In other words, once you've gotten this data into Access, for all intents a purposes, you are dealing only with an Access table--the fact that it came from Excel is completely immaterial.
So, you have an Access table with data in the structure you have described.
You mention a text box, but you don't mention what the function of this text box is. Is someone entering the Qty_ID in this text box and you expect the application to return some value? It sounds like you also need to have some sort of entry control specifying the number of colors. In other words, it sound like you are expect the system to return the intersection of a specific Qty_ID row and one of the color columns, but you haven't told us how we are getting either of those two values.
You really need to do a better job of describing your needs.