Blue
In Exodus 28:37, this signifies the truth of celestial love. (Arcana Coelestia 9933)
In Exodus 26:31, 36, this signifies intelligence from the affection of spiritual love. (Apocalypse Revealed 450) Blue and purple signify celestial goods and truths, and scarlet double-dyed and fine-twined linen signify spiritual goods and truths. (Exodus 28:33)
(Референце: Arcana Coelestia 4922; Ezekiel 27:7)
Arcana Coelestia # 9
9. The third state is one of repentance, a state in which he speaks piously and devoutly from the internal man and brings forth goods, like charitable acts which are nevertheless inanimate since he imagines that they originate in himself. They are called a tender plant, then a seed-bearing plant, and finally a fruit tree.