ARGB where A = Alpha. Opacity levels according to percentage

Hex values according to percentage.txt

E.g. for 50% white you'd use #80FFFFFF

    100% — FF
    95% — F2
    90% — E6
    85% — D9
    80% — CC
    75% — BF
    70% — B3
    65% — A6
    60% — 99
    55% — 8C
    50% — 80
    45% — 73
    40% — 66
    35% — 59
    30% — 4D
    25% — 40
    20% — 33
    15% — 26
    10% — 1A
    5% — 0D
    0% — 00

Hex values for the alpha in ARGB.
Substitute AA with the desired value of alpha in AARRGGBB.