Color Space - Color Charts
here's a 2D gamut plot of your profile,
Ultrasmooth Fine Art paper on a 3880 (close to your 2880 in gamut),
Hahnemule's profile & Exhibition Fiber Paper on the 3880.
As you can see, the gamut of your profile on the Hahnemule Smooth Photo Rag 308 with the 2880 is very, very small
SOFT PROOFING PHOTOS & PRINTS
CMY colour chart, 91 x 31 cm PDF, with steps of 10%:
CMYK colour chart (CMY + Black channel) with steps of 10%
CMYK or RGB
RGB vs. CMYK
RGB 16 Million Different Colors
The combination of Red, Green and Blue values from 0 to 255 gives a total of more than 16 million different colors to play with 256 x 256 x 256.
RGB Color Codes Chart
The Other RGB Color Chart - Color Name RGB CODE HEX # Sample
RGB to Color Name Mapping (Triplet and Hex)
Printing tutorial: Defining gamut and color space | lynda.com
Giclee Print on Hahnemuhle Photo Rag Paper
Epson 3800: Gamut Examples
Gamutvision™ is a gamut viewer and much more. It is a powerful tool for learning color management, exploring its functions, and proofing color workflows.
Interactive Printer, Camera, Scanner, and Monitor Color Gamut Comparisons
Paper color from ICC profile?
How to do color-managed printing to Epson printers that don't have paper profiles.
ICC White Papers
ICC Digital Photography
FAQ about MULTICHROMY
Converting RAL colours to Pantone or CMYK / RGB
Color spaces of any color
Android app - Color Hex RGB HEX CMYK Codes