I don't believe they are around anymore. They were located in Brighton Michigan, which is about an hour Northwest of Detroit.
Here's what I found on braniffinternational.org:
"“Ultra” Scheme 1977
In 1978 on the suggestion of Braniff’s advertising agency president George Gordon, it engaged the Cadillac automobile design consultants, Cars & Concepts, to create a new scheme to accompany its new “Ultra” look of leather interiors and sleek Halston uniforms.
The new colors, which debuted in December 1978, replaced the two-tone scheme introduced in 1971. The result was six new rich colors which took inspiration from the prior schemes:
Corvette (Light) Blue
The aircraft carried racing stripes on the lower fuselage, the leading and trailing edge of the tail and forward portion of the engine nacelles. The Braniff name appeared in script on the fuselage replacing the previous “Braniff International” name. The “BI” logo was also dropped from the tail.
The 747 aircraft featured the new orange color with a new stylized font used for “Braniff International” name on the fuselage and the same racing stripe treatment found on rest of the “Ultra” planes.
Check out http://www.braniffinternational.com
for more information.