$brands

Get the primary color using the built-in Sass function map-get()

.element {background: map-get($brands, 'phg');}

Get the secondary (or other) color using the built-in Sass function map-get() and nth()

.element {background: nth(map-get($brands, 'phg'), 2);}

Get the primary color using the Nebula brand() function.

.element {background: brand($phg);}

Get the secondary (or other) color using the Nebula brand() function.

.element {background: brand($phg, 2);}