This is a list of approved colors that Gaia supports for your use in the guild. It would be wonderful if everyone chose a different color so that no one gets confused, but it isn't mandatory.

Blue
Blueviolet
Brown
Burlywood
Cadetblue
Chartreuse
Chocolate
Coral
Cornflowerblue
Crimson
Darkblue
Darkcyan
Darkgoldenrod
Darkgray
Darkgreen
Darkmagenta
Darkolivegreen
Darkorange
Darkorchid
Darkred
Darksalmon
Darkseagreen
Darkslateblue
Darkslategray
Darkturquoise
Darkviolet
Deeppink
Deepskyblue
Dimgray
Dodgerblue
Firebrick
Forestgreen
Fuchsia
Gray
Green
Hotpink
Indianred
Indigo
Lawngreen
Lightblue
Lightgreen
Lightsalmon
Lightseagreen
Lightskyblue
Lightslategray
Lightsteelblue
Limegreen
Magenta
Maroon
Mediumaquamarine
Mediumblue
Mediumorchid
Mediumpurple
Mediumseagreen
Mediumslateblue
Mediumturquoise
Mediumvioletred
Midnightblue
Navy
Olive
Olivedrab
Orange
Orangered
Orchid
Palevioletred
Peru
Plum
Purple
Red
Rosybrown
Royalblue
Saddlebrown
Salmon
Sandybrown
Seagreen
Sienna
Skyblue
Slateblue
Slategray
Steelblue
Tan
Teal
Tomato
YellowGreen