This was supplied direct to me by (old) Quantum Sports Cars when I collected my kit (18/11/98).

Gelcoat
Paint
Colour Code BS381C BS4800 RAL
Sup. Black 630*
-
00-E-539 9005
Sup. White 337*
-
00-E-55
-
Off White 3969*
-
10-B-15
-
Oxford Blue 1187 105
-
-
British Racing Green 2162* 227
-
-
Dark BRG 3712**
-
-
-
Light BRG 29214**
-
-
-
Silver Grey 6680*
-
00-A-01
-
Post Office Red 8012* 538
-
-
Azure Blue 1186* 104
-
-
Yellow*** none std. 356*** 08-E-51***
-

* Code relarts to material supplied by Scott Bader Co. Ltd. Tel. 01933 663100
** Code relates to Llewellyn Ryland material Tel. 0121 440 2284
*** Paint code is for Golden Yellow which is a few shades away from Quantum yellow

NB: The above paint codes should only be used as a guide to assist with colour matching your to your vehicle.
Paint and gel-coat colours will alter over time.

Verbatum as typed by Quantum.

Additionally Mark Burley, Quantum Sports Cars, has supplied the following information to member Chris Young who wanted to know what red colour his previous Xtreme was.  QSC don't sell gel coat directly, but the colour is a Scott Bader Post Office Red (5312) or Poppy (5352).  This information may apply to other Xtremes with red gel coat.