Unlike other magic spells, it is not possible to use Blue Magic as soon as it is acquired. First, the spells you wish to use must be set.
Point Total/Maximum. Each Blue Magic spell is assigned a point value (Blue Magic points). The level of the Blue Mage determines the maximum number of points available for setting spells.
Maximum Number of Set Spells. The maximum number of Blue Magic spells that can be set to be active at one time is also determined by your Blue Mage level. This maximum number may decrease when you are under a level restriction and so the set numbers are assigned a color for easy reference.
You may only learn new Blue Magic spells by having Blue Mage set as main job; it is not possible to learn blue magic through a support job.
Blue Magic Limits
Blue Magic Points
Spell Set Max.
1 - 21
22 - 41
42 - 61
62 - 80
82 - 85
Magical Spells listed in bold do not rely on Blue Magic Skill for Magic Accuracy or Potency of effect.
Physical Spells are based off of weapon Accuracy instead of Magic Accuracy, and are thus exempt from this bolding.