When viewing a product, a deuteranope-friendly icon appears in each row that tells how many units for that product are currently in stock.

Out of stock A red stop sign denotes a product which is out of stock
Low stock A yellow yield sign denotes a product which has only 35 or fewer units left in stock
In stock A green dot denotes a product with more than 35 units in stock
Retired A gray square denotes a product which is retired; we might have replaced it with a newer revision or might not carry the product anymore.

If you rest your mouse over a color bubble an info box will appear showing the precise number of units in stock for that product.