The Shade: 4.54 - Mahogany Copper Brown

Decoding the Number: L'Oréal's hair color numbering system gives you a precise idea of the shade:

The 4 represents the base color, which is a Dark Brown.

The .5 signifies the first undertone, which is Mahogany. This provides a reddish-brown, often deep and cool-toned, reflection.

The 4after the decimal point indicates the secondary undertone, which is Copper. This adds warmth and a reddish-orange reflection.