The present invention provides a compound that has a maximum absorption in a wavelength range of 350-550 nm and functions as a dichroic pigment. Provided is a compound represented by formula (1): [In the formula, R1 represents a C1-20 alkyl group or the like, R2 a C1-20 acyl group or the like, and R3 a hydrogen atom or the like, and Y represents a group represented by formula (Y1): (In the formula, * represents a site of bonding with N.) or a group represented by formula (Y2): (In the formula, * represents a site of bonding with N, P1 and P2 each independently represent -S- or the like, and Q1 and Q2 each independently represent =N- or the like.)]