Some brands don't say the Kelvin rating (2700K, 6500K etc) they just say "Warm white", "cool daylight" etc. Higher Kelvin numbers are called "COOL" (5000K, 6500K etc) and lower ones are called WARM (2700K, 3000K etc).
Make sure you check the entire packaging, my CFL had Cool Daylight all over the packaging but only on the bottom of the box it specified "6500K Cool Daylight".
Why did you buy a pack of lights if you didnt know what they were?