Как мне получить соответствующее значение Hex для RGB цвет в Excel / VBA?

I'm trying to set a public const of a color in my VBA code. Normally, I can use:

Dim BLUE As Long
BLUE = RGB(183, 222, 232)

However, there's no way to public const that because of the RGB function. I converted this RGB value to Hex using an online converter, and I got back B7DEE8

Using:

BLUE = &HB7DEE8

results in a completely different color. I think this may actually be an RGBA color, and I've tried B7DEE8__ and got the color pretty close (with the last digit being B8), but I'd like to know how to actually find the correct value.

Note: I don't really need code to convert this to hex, I just need to know how to find it, because I have five constant colors I use on my Excel sheet, and I'd like to set them up.