Cats have more to do than just eat and play. If you want to understand your cat and care for them in every way, pay attention to details. For example, what color does your cat like? Once you figure that out, you can start feeding your cat food in its favorite color!
To understand what colors cats like, we need to look at their eyesight. Cats have very sharp eyesight, able to distinguish objects even in low light or at night, and they particularly prefer darker environments. In bright sunlight, a cat's pupils almost completely close to a thin slit to minimize light intake, while in darkness, their pupils dilate significantly to maximize light transmission. This rapid dilation and contraction of a cat's pupils is like adjusting a camera shutter, allowing it to quickly adjust its vision and focus on objects, even during rapid movement, based on light intensity and distance. 
How do cats perceive colors? What colors do they actually prefer? These are questions that people have always tried to research and understand. What colors do kittens like? These are questions that pet owners may occasionally ask themselves.
Actually, what we know most about dogs and cats is that they are both born colorblind (or have severe color weakness). Cats generally have poor color perception and don't have a particular color preference. However, they are extremely sensitive to smell. Kittens don't have a preference for or dislike of any particular color, but they are very sensitive to distinguishing scents.
Cats can quickly adjust their vision and focus to clearly see objects even when moving rapidly, based on the intensity of light and the distance of the object. This is the primary way cats distinguish objects. Regarding color, cats can see purple, blue, green, and yellow. They cannot see red, orange, and brown; these colors appear as black to grayscale to cats. The colors cats see have low saturation, so they are not as vibrant and lively as the colors we see. The television screen images we watch, mainly composed of red, blue, and green, appear as gray, blue, and green to cats. Therefore, it's true that some people say cats' favorite color is gray!
