Which type of hair color is recommended for someone wanting to go a few shades darker?

When considering a transition to a few shades darker, semi-permanent hair color is recommended because it provides a balanced approach to enhancing the hair's shade without the long-term commitment associated with permanent color. Semi-permanent color typically contains no ammonia, making it less damaging to the hair's structure while still allowing for vibrant color results.

This type of color gradually fades with washing, allowing the individual to experiment with darker shades without permanently altering their current color. It's ideal for those who want to test a darker hue before committing to a more permanent option. The semi-permanent formula also blends well with natural tones, enhancing the overall depth and richness of the hair color without the starkness that sometimes comes from permanent options.

In contrast, permanent hair color is designed for long-lasting results and can be more damaging to the hair, while temporary hair color typically lasts only a few washes and may not provide the desired depth for someone looking to go darker. Bleach, on the other hand, is primarily used for lightening hair, not darkening it, which makes it unsuitable for the intent of this question.