gistfile1.txt

add_filter( 'the_title', 'baw_add_color_to_title' );
function baw_add_color_to_title( $title ) {
	global $post;
	if ( is_single() ) {
		$term = get_the_terms( 0, 'category' );
		if ( $term ) {
			$term = reset( $term );
			$color = get_term_meta( $term->term_id, 'color', true );
			$title = sprintf( '<span style="color:%s">%s</span>', esc_attr( $color ), $title );
		}
	}
	return $title;
}