Organic compound and electrochromic element containing the same

A composition, comprising a compound having an absorption peak at 400 nm or more and 600 nm or less in its colored state and a compound having the following general formula [7]:

• wherein A1 and A2 independently denote a hydrogen atom, an alkyl group containing 1 or more and 20 or less carbon atoms, an alkoxy group containing 1 or more and 20 or less carbon atoms, or an optionally substituted aryl group,
• provided that at least one of A1 and A2 denotes the alkyl group, the alkoxy group, or the aryl group,
• the aryl group may have an alkyl group containing 1 or more and 8 or less carbon atoms or an alkoxy group containing 1 or more and 8 or less carbon atoms as a substituent,
• R7 denotes a hydrogen atom, a halogen atom, an alkyl group containing 1 or more and 20 or less carbon atoms, an alkoxy group containing 1 or more and 20 or less carbon atoms, an alkyl ester group containing 1 or more and 20 or less carbon atoms, an optionally substituted aryl group, an optionally substituted amino group, or a cyano group,
• the aryl group may have an alkyl group containing 1 or more and 4 or less carbon atoms as a substituent,
• R2 to R5 independently denote an alkyl group containing 1 or more and 20 or less carbon atoms, an alkoxy group containing 1 or more and 20 or less carbon atoms, an optionally substituted aryl group, an alkyl ester group containing 1 or more and 20 or less carbon atoms, an optionally substituted amino group, or a cyano group,
• R1 and R6 independently denote a hydrogen atom, a halogen atom, an alkyl group containing 1 or more and 20 or less carbon atoms, an alkoxy group containing 1 or more and 20 or less carbon atoms, an alkyl ester group containing 1 or more and 20 or less carbon atoms, an optionally substituted aryl group, an optionally substituted amino group, or a cyano group,
• m is an integer in the range of 1 to 3, and a plurality of R3's and R4's may be the same or different.