alias alphahex='echo -n "Enter percentage: " ; read opt ; echo "obase=16; ibase=10; (255*$opt+50)/100" | bc'
Replace XX by percentage.
echo "obase=16; ibase=10; (255*XX+50)/100" | bc
- 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