The biggest characteristic shared between Ragdoll and Siamese cats is the seal color pattern of their fur. This means the white to creamy white bodies with dark brown masks, ears, tails, and mittens in contrast.
Siamese – While the seal point Siamese cat is the breed’s best-known color variety, these cats also come in several other colors – blue point, chocolate point, lilac point, flame point, and cream point.
Ragdoll – This breed became popular with seal point individuals. As such, to this day, this is the most common type of Ragdoll cat. However, like for the Siamese, there is significant variety in colors and patterns.