Mahogany bugleweed This evergreen ajuga reptans has dark bronze foliage growing 3 to 4 inches tall, accented by deep blue flower spikes.
From the thenewstribune.com
Combine it with heuchera Georgia Peach, which displays rosy to rosy purple hues in fall and winter, and the bronzy green, pink and cream foliage of ajuga reptans Burgundy Glow.