I see that the Monero logo is basically a monogram with a white M whose ends extend to the circular sides. It also has a orange upper half and the gray lower half. What is the symbolism of this design and colors?
We can note that three of the four inspirations given in the brief (Bitcoin, NXT, Blackcoin) feature orange/yellow/gold color.
A similar question asked on BitcoinTalk forum have had not specific answer other than the general symbolism of orange:
Can someone show me why orange and gray were the colors chosen aside from the fact it looks nice (in a generic way), or if there was any deeper symbolism to the logo? not that it matters much but man and his symbols always fascinate me.
[Orange] combines the energy of red and the happiness of yellow. It is associated with joy, sunshine, and the tropics. Orange represents enthusiasm, fascination, happiness, creativity, determination, attraction, success, and stimulation.