Amber oolong is a style of oolong tea popular in Taiwan that is darker than Jade oolong, but still lighter than many oolongs. Different sources claim that the level of oxidation is 50-60%. These 'oxidation percentages' are arbitrary and subjective estimates, not measurable values. Amber Oolongs tend to have a robust, earthy flavour, but still have the greener character of the lighter Oolongs thanks to the longer withering and firing process.
25-60% oxidation