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-rw-r--r--discord/ext/commands/converter.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/discord/ext/commands/converter.py b/discord/ext/commands/converter.py
index 81d3a00e..13d7e41c 100644
--- a/discord/ext/commands/converter.py
+++ b/discord/ext/commands/converter.py
@@ -294,6 +294,8 @@ class ColourConverter(Converter):
arg = arg[1:]
try:
value = int(arg, base=16)
+ if not (0 <= value <= 0xFFFFFF):
+ raise BadArgument('Colour "{}" is invalid.'.format(arg))
return discord.Colour(value=value)
except ValueError:
method = getattr(discord.Colour, arg.replace(' ', '_'), None)