This subset of RAL Classic colours primarily contains shades of Green colour. All colour codes in this range starts with RAL-6xxx, this is distinctive feature for green "Classic" RAL colour range. You might also notice, that some of these colours appear quite similar to brown colours, but most of brown RAL colours are actually listed here on a seperate section. Someone may argue that quite a few grey shades look brownish and some beige colours also have a hint of brown. Either way, the most greenish RAL tones are listed here below on this page.
Click any of these colours for extensive details and more similarly looking color swatches. If you're still not quite sure, using ral colour search might bring you the answers that you need.
Most people also find, that comparing RAL Colors side by side is also a very handy tool for colour selection.
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