Improving the accuracy of the utilities

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To be honest, I've employed a number of ingenious tactics to reach certain end goals. For example, the color temperature utilities isCool and isWarm make use of a map object that has hue families such as blue or green as top nodes and each node containing a warm and cool key that in turn has an array with two values: a starting and ending range for the hue family's warm/cool colors.

The functions do an inRange check to determine if the color's hue channel value is found in the warm or cool range of that hue family. This determines the final Boolean value of the predicate.

This may seem like a naive approach but I think for the sake of our use cases it is sufficient for now.

The library is open for adjustments to the underlying implementation as long as we maintain the high level API unaffected.

Thoughts on how functionality could be improved are greatly appreciated!