Why it Works:
Marriott's refresh is effective because it keeps the two most recognizable parts of the old logo — its color and the instantly recognizable M.
Why it Works:
YouTube keeps its existing colors intact for an end result that looks new and familiar at the same time.
Why it Works:
The new logo is instantly recognizable and yet much more contemporary, proving that seemingly subtle changes can go a long way.
Why it Works:
The Peace Corps took the most recognizable part of its identity – the dove – and let it be the hero of its updated logo
Why it Works:
The brand went with a flat, one-color version of its iconic chrome design