Snippet para WordPress que permite modificar los colores de texto del editor de WordPress añadiendo los nuestros personalizados.

wp_dinapyme_personalizar_colores_mce

function wp_dinapyme_personalizar_colores_mce( $opciones ) {

	// el array $colores_base contiene los colores estándar del editor de WordPress
	$colores_base = '
			    "000000", "Negro", 
			    "993300", "Burnt orange",
			    "333300", "Dark olive",
			    "003300", "Dark green",
			    "003366", "Dark azure",
			    "000080", "Navy Blue",
			    "333399", "Indigo",
			    "333333", "Very dark gray",
			    "800000", "Maroon",
			    "FF6600", "Orange",
			    "808000", "Olive",
			    "008000", "Green",
			    "008080", "Teal",
			    "0000FF", "Blue",
			    "666699", "Grayish blue",
			    "808080", "Gray",
			    "FF0000", "Red",
			    "FF9900", "Amber",
			    "99CC00", "Yellow green",
			    "339966", "Sea green",
			    "33CCCC", "Turquoise",
			    "3366FF", "Royal blue",
			    "800080", "Purple",
			    "999999", "Medium gray",
			    "FF00FF", "Magenta",
			    "FFCC00", "Gold",
			    "FFFF00", "Yellow",
			    "00FF00", "Lime",
			    "00FFFF", "Aqua",
			    "00CCFF", "Sky blue",
			    "993366", "Brown",
			    "C0C0C0", "Silver",
			    "FF99CC", "Pink",
			    "FFCC99", "Peach",
			    "FFFF99", "Light yellow",
			    "CCFFCC", "Pale green",
			    "CCFFFF", "Pale cyan",
			    "99CCFF", "Light sky blue",
			    "CC99FF", "Plum",
			    "FFFFFF", "White"
			';
	
	// la variable $mis_colores contiene los colores pesonalizados que añadimos.
	// Podemos añadir más colores al array.
	$mis_colores = '
	    			"403075", "Dinapyme Color 1",
	    			"408E2F", "Dinapyme Color 2", 
	    			"AA6B39", "Dinapyme Color 3"  
				';
				
	$opciones['textcolor_map'] = '['.$colores_base.', '.$mis_colores.']';  // asignamos al array texcolor_map los colores base + mis colores
	$opciones['textcolor_rows'] = 6;  // $mis_colores irán en la sexta fila
	
	return $opciones;
}

add_filter('tiny_mce_before_init', 'dinapyme_personalizar_colores_mce');