A logo should not depend on effects or colors. It must be effective and elegant in its natural form, and that is in a single solid color, which may be the color that is selected for the brand, but without a doubt it should be applied in black and white.
Consider color as a conceptual element of your image.
Red: Passion, excitation, intensity
Orange: Creativity, joviality
Yellow: Optimism, happiness
Purple: Compassion, delicacy, gentleness
Blue: Trust, security, wisdom
Green: Health, nature
Gray: Neutrality, calm
Black: Sophistication, simplicity