Spotted or blotched with different shades or colors.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "mottled" in a sentence
"Her bright russet hair sliding out of a barrette, her skin mottled, her face carefully neutral."
"Under his feet was the velvet grass, the trees arched overhead, and he stood in mottled sunshine."
""Toasted skin syndrome" is what Swiss researchers have dubbed a mottled-skin condition caused by long-term heat exposure."