The word "Oker" can be used to describe various shades of yellow-brown colors. Synonyms for this word may include ochre, amber, caramel, honey, mustard, saffron, beige, and tan. Depending on the context and shade of the color, other synonyms may include golden, sandy, buff, khaki, and russet. These alternate words can be used to add variety and specificity to descriptions of colors. They may be particularly useful in artistic or creative contexts where precise descriptions of colors are important.