It may simply have been that there was a lower light level in the laundry room than outside. They are plants for full sun and the darker green is normally the more natural one.

do you mean Aloe? As in Aloe vera? or some other variety of Aloe? If so, you've put them out much too early - they can be stood outside in high summer, so mid June through to maybe end of July, depends on the summer, then they must be brought back indoors though it depends on the variety of aloe. When you move them outdoors, they still need to be hardened off by being left out for gradually increasing periods during the day, till they're out overnight.
The temperatures and climate generally here are not ideal for this type of plant, but there are some hardier varieties which will survive in well drained positions in warmer regions. Not sure where you are counts as a 'warmer region'!

Yes they are Aloe vera...rather than a dull green they seem to have taken on a brown color...I have bought them back inside now but they are really too big to stay indoors.They must be at least 10 years old so the climate must suit maybe they are the hardier variety.
But Thank You anyway for the replies.

I just checked - nope, can't be grown outdoors in UK, almost all the UK is Zone 8, and the lowest recommended zone for these is 9, and only then for a couple of particular varieties, not including aloe vera. All the rest are Zone 10 and above. If they're huge, that might be why you ended up with them - if they produce pups, you could grow those on and bin the original.

No they are not huge at all they are in pots which altho heavy can be lifted indoors....again thanks for the interest.

If you leave them outside as soon as the weather gets a bit warmer you can leave them out all summer and they will look much healthier by the autumn. At least mine does. Best on a patio rather than soil though to discourage slugs.

Thanks again...good to talk again