Brown hair is one of those colors that never really disappears from beauty trends, but I think the undertone makes all the difference. A deep red-brown can look dramatic and glossy, while a lighter golden brown feels softer and more natural.

These two shades show exactly how different brunette hair can look depending on depth, warmth and texture.

A Richer Dark Brunette

Garnier Nutrisse Ultra Crème in shade 415 Soft Mahogany Brown is the option I would choose when I want a deeper brunette with a noticeable red undertone.

What I like most about this shade is the dimension. On straight hair, it looks dark, smooth and almost wine-toned in certain lighting, while on curls the warmer red notes become much more visible because every curve catches the light differently. That gives the color a richer, more layered appearance instead of making it look flat.

I would choose this shade if I wanted a stronger transformation without going fully black. It feels especially suited to autumn and winter because the mahogany undertone adds warmth while still keeping the overall color dark and polished.

A Softer Golden Brown

L’Oréal Paris Excellence Crème in 6G Light Golden Brown creates a completely different effect. This one looks lighter, warmer and more natural, with golden tones that make the hair appear brighter.

On straight hair, I like how smooth and reflective the shade looks. It gives the lengths a soft caramel-brown finish without becoming too yellow. On curls, the golden undertones stand out even more, creating natural-looking highlights through the shape of each curl.

I would choose this color when I want to soften my overall look rather than make it more dramatic. It feels easier for everyday wear and works especially well when I want brunette hair to look warm, glossy and slightly sunlit.

Which One I’d Choose

If I wanted something deeper and more dramatic, Garnier Nutrisse Ultra Crème 415 Soft Mahogany Brown would be my choice. The red-brown undertone gives it much more intensity.

For a softer and brighter result, I would pick L’Oréal Paris Excellence Crème 6G Light Golden Brown. It feels warmer, lighter and more effortless.

For me, both prove that brunette hair can be just as expressive as any bold color — the difference is all in the undertone.