Colored photosensitive composition, color filter, and method for manufacturing color filter

A colored photosensitive composition comprising:

• a coloring agent with a content of from 50% by weight to 80% by weight with respect to the total solid content of the composition;
• an oxime-based initiator with a content of from 5% by weight to 20% by weight with respect to the total solid content of the composition;
• and
• a resin containing at least one first structural unit represented by any one of the following formulae (1) to (3) containing an unsaturated double bond, and at least one second structural unit represented by the following formula (4) containing an acid group, wherein a ratio of the first structural unit to the second structural unit is 1.5 or more (molar ratio);
• wherein A1, A2 and A3 each independently represent an oxygen atom, a sulfur atom or —N(R21)—, in which R21 represents a substituted or unsubstituted alkyl group;
• G1, G2 and G3 each independently represent a divalent organic group;
• X and Z each independently represent an oxygen atom, a sulfur atom or —N(R22)—, in which R22 represents a substituted or unsubstituted alkyl group;
• Y represents an oxygen atom, a sulfur atom, a substituted or unsubstituted phenylene group, or —N(R23)—, in which R23 represents a substituted or unsubstituted alkyl group;
• R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, and R20 each independently represent a monovalent substituent;
• RA represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms;
• and RB represents a divalent linking group.