The flag of the state of Colima is, like most current Mexican state flags, the coat of arms centered on a white field.
The main symbol in the coat of arms is the prehispanic hieroglyph for an arm. Below the shield is a golden ribbon with the words "El TEMPLE DEL BRAZO ES VIGOR EN LA TIERRA", which roughly translates to "The arm's steadiness is strength on the land". Above the ribbon are two jaguars, a palm tree and the Volcán de Colima.
Proposals for new flag of Colima
Blue and white here are meant to represent New Galicia, as the territory was originally part of that province. By MetamarioMX. 2014.
Civic version of the design where blue and white here are meant to represent New Galicia, as the territory was originally part of that province. By MetamarioMX. 2014.
Named after Coliman, a warrior whose name loosely translates to 'the place of the fire god'. The disk represents fire, the hand represents power and the pattern is based on those of the region. By kyrgyzzephyr. 2014.
The Volcán de Fuego and the Nevado, so characteristic of the state, over a blue background and the official motto make up the Flag of Colima. By Ricardo Vazoli, 2016.
CL Flag Proposal "apollohawkridge"
The three stripes are based on the colours of the Mexican Flag, representing the independence (red), unity (white) and the green is changed to golden yellow, the same of the coat of arms and represents the motto itself of the state ("El temple del brazo es vigor en la tierra"). In the left side, with blue, there is a simplistic representation of the local volcanoes of Colima, turned sideways because of design decision. AkaiRyu. 2017.