I assume colour is significant in the book of Revelation.
I was reading chapter 20, and realised that in Revelation 20:11 we have a "great white throne" and someone seated on it. This takes us back to Revelation 4:2, where we had a throne with someone seated on it. But this one is specifically white.
In this book we have
- white hair (Revelation 1:14)
- white stone (Revelation 2:17)
- white clothes (Revelation 3:4-5, 18; Revelation 4:4)
- white horse (Revelation 6:2; Revelation 19:11, 14)
- white robe (Revelation 6:11; Revelation 7:9, 13-14)
- white cloud (Revelation 14:14)
- white throne (Revelation 20:11)
Let's not stop with the colour white. We have others (where I've italicised it's colour references that are probably not significant, being the colours of things in a list of items the city used to trade)
- red horse (Revelation 6:4)
- red moon (Revelation 6:12)
- red horses (Revelation 9:14)
- red dragon (Revelation 12:3)
- green grass (Revelation 8:7)
- yellow horses (Revelation 9:17)
- scarlet beast (Revelation 17:3)
- dressed in purple and scarlet (Revelation 17:4)
- scarlet cloth (Revelation 18:12, 16)
The book of Revelation is not a black-and-white silent movie. It's full colour (and very much not silent). In fact, when there's 30 minutes' silence it's significant enough to be worth recording, but that may be the theme of another post.