When I say "color temperatures," I'm referring to the white light spectrum. At one end, you've got warm, candlelike light. At the other, hotter, more bluish-white daylight tones. The Hue White Ambiance LEDs can do them all.
Take a look for yourself. Here's the Hue White Ambiance LED at max brightness at its default color temperature setting followed by the non-smart Philips 60W Equivalent LED, which puts out 800 lumens. The difference is subtle, but noticeable.
Each White Ambiance LED costs $30, with the starter kit selling for $130 (the White Ambiance LEDs aren't available outside of the US just yet, but other Hue products are -- those prices convert to roughly £20/AU$40 per bulb, or £90/AU$180 for the kit).
Be sure to check out our full review to see whether or not these smart bulbs are a smart buy for your home.