More on Heraldic Colours from Infoplease:

• Heraldic Colours - Heraldic Colours (See Jewels.) Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894 ...
• Blue and Red - Blue and Red in public-house signs, are heraldic colours, as the Blue Pig, the Blue Cow, the Red ...
• Sun and Moon - Sun and Moon Falling By the old heralds the arms of royal houses were not emblazoned by colours, ...
• Gules - Gules [red]. An heraldic term. The most honourable heraldic colour, signifying valour, justice, and ...
• Dictionary of Phrase and Fable: H - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "H"