All Colour Envelopes, Established Supplier. Massive range of coloured envelopes in stock. From Blue Envelopes, Green Envelopes, Red Envelopes, Black Envelopes, Silver Envelopes and gold envelopes to name a few.. We also have a multitude of other varieties of envelopes ranging from Pastel Envelopes, Vibrant Envelopes, Metallic Envelopes, Pearlescent Envelopes, Intensive Envelopes and Translucent Envelopes. We can supply many sizes from C4,C5,C6 through to DL and Square all at a great quality 120 gsm.If you are interested in seeing the great variety of coloured envelopes we have to offer why not contact us on: 01273 486026, email us on: or visit our website at: .