Efficient lighting comes in a range of colour options including ‘warm white’ (the same as standard light bulb colour) and ‘cool white’ (a cooler colour that's good above work benches). Look on the box for colour information.
While some types of light are clearly more energy efficient than others, it's not a simple case of only using one type of lighting and expecting it to do different things. Choosing the right light for each room and fitting will allow you to save money while maintaining or improving - the quality of the light throughout your home.