Dilution

Much like the name implies, the dilution gene makes a cat's coat lighter. Black cats will turn gray or blue, while red cats will turn cream. In the case of torties, you may see them named gray-and-cream torties, or more commonly dilute torties. Just like red based cats, cream cats will always show their corresponding tabby.

Dilute cats may not be light enough to be confused with white. There must always be a distinction between the base color, stripe color and white spotting. 

Dilution always affects both the base color and the stripe color. 

Grey

Grey happens when a cat is both black-based, has black pigment and the dilution gene. Grey cats may have the same nuances as black cats.

Grey cats may not have a base lighter than 80% Value (CSP) or darker than 20% (CSP)

• 20-80V (photoshop/SAI2)

• 51-204 (medibang/SAI)

Grey cats that are warm-hued may not be more saturated than 10 (csp/ps/sai2) or 20 (medibang/sai)

Cream

Cream is the name for the combination of a Red-based with the dilution gene. Just like red cats, cream based cats will always express their corresponding tabby type and follow all Tabby Rules.