Return a color tuple give a value within the range of mapped values
        :param value: Lookup value
        :rtype: tuple of RGB integer values

def getColorForValue(self, value):
        """
        Return a color tuple give a value within the range of mapped values
        :param value: Lookup value
        :rtype: tuple of RGB integer values
        """
        rampIndex = 0

        if value >= self.min and value <= self.max:
            rampIndex = self.getIndexForValue(value)

        elif value > self.max:
            rampIndex = -1

        elif value < self.min:
            rampIndex = 0

        return self.getColorForIndex(rampIndex)