Pigment dispersion liquid and inkjet ink

A pigment dispersion liquid comprising:

• a pigment;
• a polymer dispersant;
• and
• water,
• wherein the pigment is a pigment including a compound represented by General Formula (1), a tautomer thereof, or a salt of the compound or the tautomer, and
• the polymer dispersant includes a polymer compound having a repeating unit represented by General Formula (2-1) and a repeating unit represented by General Formula (2-2), and having a structure represented by General Formula (3) introduced into at least one terminal of a main chain,
• in General Formula (1),
• Z represents a 5-membered heterocyclic ring or a 6-membered heterocyclic ring, both of which may have a substituent,
• Y1, Y2, R11, and R12 each independently represent a hydrogen atom or a substituent,
• G1 and G2 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and
• W1 and W2 each independently represent a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group,
• in General Formula (2-1), R1 represents a hydrogen atom, a methyl group, or a substituted methyl group, and R2 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group,
• in General Formula (2-2), R3 represents a hydrogen atom, a methyl group, or a substituted methyl group, and M represents a hydrogen atom or a counter cation, and
• in General Formula (3), L represents a linking group, R4 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and the symbol * represents a linking bond.