ESO logo and and URL in black
The European Southern Observatory logo in black, displaying the name of the organisation and the website address. To be used on ESO products such as mugs, stickers and postcards.
This logo is not available for sale.
The logo should never be used on a background with the same colour.
The contrast between the logo and the background should always be superior to 50%.
The logo proportions should not be changed.
The elements that compose the logo should not be removed and the colours should not be altered