In the logo Aternos is written capitalized. This is reserved for the logo only and should not be used in any texts. In texts Aternos is written as a regular name, so just the A is capitalized. Also the name is not Aternos.org, that's just the website, which should be written as aternos.org. The website is also not www.aternos.org, just aternos.org.
The basic logo has an relative size of 16x16, which can be proportionally increased. It has a border with a width of 2, 4 corners and a square in the middle. There is a space of 1 between these elements.
The main color choice is the dark or light grey color as background and the other one as text color. These color combinations can be swapped for different sections, e.g. on longer website like this one or the Aternos frontpage. Other colors must not be used as a general background. It is allowed to use the Aternos blue or the dark blue as text color for titles or labels, but it is not allowed to use them for longer texts. Secondary colors must not be used as text color, but they can be used as button or label background colors or to color specific elements. All colors can be lightened or darkened to represent hover, active states or to highlight elements, e.g. titles in a colored element.