>>1648574Being completely phonetic, the two syllables of "colour" would be pronounced "koll" and the word "our", respectively, which sounds identical to the word "collar".
The two syllables of "color" would be pronounced "koll" and the word "or", which is resembles the sound of the word "collar".
Color is therefore more intuitive to young learners just developing the basics of english literarcy. The errant 'u' in 'colour' makes the word slightly more complex, and unnecessary complexity is bad pedagogy.
