Colores CSS https://www.w3schools.com/css/css_colors.asp https://cssreference.io/property/color/ https://htmlcolorcodes.com/ Paletas: https://coolors.co/ https://colorhunt.co/palettes/popular Background: https://www.w3schools.com/css/css_background.asp https://www.w3schools.com/css/css3_backgrounds.asp https://css-tricks.com/almanac/properties/b/background/ https://cssreference.io/backgrounds/