The color of a solar blanket doesn't significantly impact its effectiveness in heating a pool. The primary function of a solar blanket is to trap heat, and this is primarily achieved through its material composition and insulation properties, not its color.

Here's why:

* Solar absorption: While darker colors absorb more sunlight, this only affects the initial heating of the blanket itself. The blanket's primary function is to create a barrier and prevent heat loss, not to directly absorb sunlight.

* Heat retention: The material itself, typically a type of bubble wrap or polyethylene, is the key to trapping heat. The bubbles within the material create a layer of insulation, preventing heat from escaping.

* Transparency: Some solar blankets are designed to be partially transparent to allow sunlight to penetrate the water, which can contribute to heating. However, this is secondary to the blanket's primary function of insulation.

Therefore, the color of the solar blanket is not a major factor in its effectiveness. You may find blankets in various colors, but choose based on other factors like material quality, thickness, and size.