Ink set, inkjet recording method and recorded material

An ink set, comprising:

• at least a yellow ink composition;
• a magenta ink composition;
• and a cyan ink composition,
• wherein
• the yellow ink composition contains, as a yellow colorant, at least one member selected from the group consisting of a compound represented by the following formula (Y-I) and a salt thereof,
• each of a yellow colorant, a magenta colorant and a cyan colorant contained in the yellow ink composition, the magenta ink composition and the cyan ink composition, respectively, has at least one ionic hydrophilic group,
• a counter ion of the ionic hydrophilic group contains a lithium ion,
• a mol number per ink unit weight of the lithium ion contained in the yellow ink composition is from 2.0×10−5 to 1.0×10−3 mol/g,
• a mol number per ink unit weight of the lithium ion contained in the magenta ink composition is from 2.0×10−6 to 1.0×10−3 mol/g, and
• a mol number per ink unit weight of the lithium ion contained in the cyan ink composition is from 5.0×10−6 to 1.0×10−3 mol/g:
• wherein G represents a heterocyclic group;
• n represents an integer of 1 to 3;
• when n is 1, R, X, Y, Z, Q and G each represents a monovalent group;
• when n is 2, R, X, Y, Z, Q and G each represents a monovalent or divalent substituent, and at least one member represents a divalent substituent;
• and
• when n is 3, R, X, Y, Z, Q and G each represents a monovalent, divalent or trivalent substituent, and at least two members represent a divalent substituent or at least one member represents a trivalent substituent,
• provided that formula (Y-I) has at least one ionic hydrophilic group and a counter ion of the ionic hydrophilic group contains a lithium ion.