Adjusting integer based on multiple elements in int array

I'm working with the following code which adjusts an int based on multiple elements of an integer array. I am wondering if there's a cleaner, easier-to-read construct for this:

int Blue = 0;
int[] Adjustments = new int[24];
// ... populate Adjustments

if (Adjustments[0] == 255)
    Blue = 128;
else if (Adjustments[0] == 0)
    Blue = 0;

if (Adjustments[1] == 255)
    Blue += 64;
else if (Adjustments[1] == 0)
    Blue += 0;

if (Adjustments[2] == 255)
    Blue += 32;
else if (Adjustments[2] == 0)
    Blue += 0;

if (Adjustments[3] == 255)
    Blue += 16;
else if (Adjustments[3] == 0)
    Blue += 0;

if (Adjustments[4] == 255)
    Blue += 8;
else if (Adjustments[4] == 0)
    Blue += 0;

if (Adjustments[5] == 255)
    Blue += 4;
else if (Adjustments[5] == 0)
    Blue += 0;

if (Adjustments[6] == 255)
    Blue += 2;
else if (Adjustments[6] == 0)
    Blue += 0;

if (Adjustments[7] == 255)
    Blue += 1;
else if (Adjustments[7] == 0)
    Blue += 0;

Any suggestions?

Edit

Here is the revised version based on suggestions provided:

Blue = 0;
Green = 0;
Red = 0;
int[] Adjustments = new int[24];
// ... populate Adjustments

int[] AdjustmentStops = new[] { 128, 64, 32, 16, 8, 4, 2, 1 };
for (int i = 0; i < 8; i++)
{
    Blue += Adjustments[i] == 255 ? AdjustmentStops[i] : 0;
    Green += Adjustments[i + 8] == 255 ? AdjustmentStops[i] : 0;
    Red += Adjustments[i + 12] == 255 ? AdjustmentStops[i] : 0;
}

At the risk of being 'clever':

int Blue = 0;
int[] Adjustments = new int[24];
// ... populate Adjustments 

for (int blueIndex=0; blueIndex<8; blueIndex++)
{
   if (Adjustments[blueIndex] == 255)
   {
      Blue |= (1 << (7 - blueIndex));
   }
}

Since in effect you're setting bits anyway I think using bitwise operations is idiomatic here.

StackExchange Code Review Q#1557, answer score: 7