Manjushri is a bodhisattva associated with wisdom in Buddhism. He is often depicted in different forms, each representing a specific aspect of wisdom. While there are various representations of Manjushri, including different colors, the most commonly known forms include Green Manjushri, Red Manjushri, Yellow Manjushri, White Manjushri, and Black Manjushri.

Green Manjushri: This form of Manjushri is associated with peaceful and calm wisdom. Green represents harmony and balance. Green Manjushri is often depicted holding a sword of wisdom in his right hand and a lotus flower in his left hand, symbolizing the blossoming of wisdom.

Red Manjushri: Red Manjushri represents the fiery aspect of wisdom, associated with fierce determination and transformation. Red symbolizes passion and energy. Red Manjushri is often depicted holding a flaming sword, symbolizing the power to cut through ignorance and delusion.

Yellow Manjushri: Yellow Manjushri represents the illuminating wisdom that dispels ignorance. Yellow symbolizes clarity and knowledge. Yellow Manjushri is often depicted seated on a lion's throne, holding a flaming sword and a book, symbolizing the wisdom that cuts through the confusion and leads to enlightenment.

White Manjushri: White Manjushri symbolizes the pure and pristine nature of wisdom. White represents purity and transcendence. White Manjushri is often depicted holding a sword and a book, signifying the cutting through of ignorance and the preservation of knowledge.

Black Manjushri: Black Manjushri represents the power to overcome obstacles and transform negativity into wisdom. Black symbolizes the ability to absorb and transform negative energies. Black Manjushri is often depicted holding a vajra (a ritual object) in his right hand and a book in his left hand, signifying his ability to dispel ignorance and grant spiritual insight.

It's important to note that these descriptions are based on common interpretations and may vary in different Buddhist traditions and artistic representations.