This unique Christmas tree has an eye-catching combination of red leaves and a blue trunk. The bright red leaves beautifully contrast with the deep blue of the trunk, making it a one-of-a-kind sight to behold. To color it, I would go for a combination of various shades of blue for the trunk, and for the leaves, I'd try a combination of vibrant reds, oranges, and yellows. You can even add some fun detail to the tree with ornaments, or a star at the top – whichever way you choose to color it, it's sure to be a festive addition to your holiday décor.