A chromene compound having a short fading half period, especially, a short fading half period even at a low temperature in a general-purpose polymer solid matrix.
The chromene compound is represented by the following formula (
1
).
wherein R
1
is a hydroxyl group or the like, R
2
and R
3
are each an aryl group or the like, C* is a spiro carbon atom,
a spiro ring A represented by the following formula is a saturated hydrocarbon ring having 4 to 12 ring member carbon atoms or the like, and at least one ring member carbon atom constituting the ring A is a group represented by the following formula (4), and X is a divalent group such as arylene group,
wherein R
7
and R
8
are each a cycloalkyl group or the like.