Every album on the site's lists with a rock genre, each counted once, drawn as a stripe in the colour of its cover. Below, the same for each decade, and the covers of the other genres beside them.
All the rock covers
- brown 18%
- orange 15%
- red 14%
- black 12%
- blue 9%
- yellow 7%
- teal 7%
- grey 6%
- white 5%
- green 4%
- pink 3%
The commonest colour is brown, on 18 percent of the covers, then orange, 15 percent, and red, 14 percent.
By decade
Each band has 79 covers, as many as the smallest decade has, drawn from the decade's rock covers by the same lot every time, so that the decades can be set side by side.
The 1960s
- brown 24%
- orange 19%
- red 18%
- blue 11%
- teal 8%
- yellow 8%
- black 4%
- pink 4%
- grey 3%
- green 1%
- white 1%
The 1970s
- brown 24%
- red 14%
- black 11%
- orange 11%
- grey 9%
- teal 9%
- white 9%
- blue 5%
- yellow 5%
- green 3%
The 1980s
- brown 24%
- black 16%
- blue 13%
- orange 10%
- red 9%
- yellow 9%
- grey 6%
- pink 4%
- white 4%
- green 3%
- teal 3%
The 1990s
- brown 19%
- red 16%
- orange 15%
- yellow 14%
- blue 11%
- grey 8%
- teal 8%
- black 5%
- green 1%
- pink 1%
- white 1%
The 2000s
- black 18%
- brown 18%
- orange 13%
- red 13%
- blue 8%
- white 8%
- yellow 6%
- green 5%
- pink 5%
- grey 4%
- teal 4%
The 2010s
- brown 25%
- orange 14%
- grey 11%
- red 10%
- black 9%
- teal 9%
- blue 5%
- green 5%
- white 5%
- yellow 5%
- purple 1%
The 2020s
- black 16%
- blue 15%
- brown 11%
- red 11%
- orange 9%
- white 9%
- grey 8%
- green 5%
- pink 5%
- teal 5%
- yellow 4%
- purple 1%
Beside other genres
Rock beside the other genres on the lists, each band 100 covers drawn by the same lot and in the same order of hues. A genre with fewer covers has no band. An album with genres of two families, rock and pop for one, can be in both bands.
Rock
- orange 19%
- red 19%
- black 12%
- grey 12%
- brown 11%
- blue 9%
- yellow 7%
- teal 4%
- white 4%
- pink 2%
- green 1%
Jazz
- black 18%
- red 17%
- brown 13%
- blue 12%
- orange 12%
- grey 9%
- yellow 5%
- green 4%
- white 4%
- teal 3%
- purple 2%
- pink 1%
Pop
- orange 21%
- brown 20%
- black 13%
- red 11%
- grey 9%
- blue 7%
- yellow 7%
- teal 4%
- white 4%
- green 3%
- pink 1%
Soul & R&B
- orange 19%
- red 18%
- brown 13%
- black 11%
- blue 10%
- grey 8%
- teal 8%
- yellow 4%
- green 3%
- pink 3%
- white 2%
- purple 1%
Hip hop
- brown 25%
- red 19%
- black 12%
- blue 10%
- orange 10%
- yellow 8%
- grey 6%
- white 4%
- green 3%
- pink 2%
- teal 1%
Electronic
- red 14%
- yellow 12%
- blue 11%
- brown 11%
- grey 11%
- black 9%
- teal 9%
- orange 7%
- green 6%
- white 5%
- pink 4%
- purple 1%
Classical
- red 19%
- brown 18%
- orange 17%
- black 14%
- grey 8%
- yellow 6%
- blue 5%
- white 5%
- teal 4%
- green 2%
- pink 2%
Folk & Country
- black 18%
- orange 16%
- brown 14%
- grey 12%
- red 12%
- teal 9%
- blue 8%
- yellow 5%
- green 2%
- white 2%
- pink 1%
- purple 1%
Blues
- brown 24%
- black 15%
- blue 13%
- red 13%
- orange 10%
- pink 6%
- grey 5%
- green 4%
- teal 4%
- yellow 4%
- white 2%
Latin
- orange 25%
- brown 21%
- black 14%
- red 10%
- blue 7%
- teal 6%
- white 6%
- grey 4%
- yellow 4%
- green 2%
- pink 1%
World
- brown 24%
- black 15%
- orange 15%
- red 10%
- yellow 9%
- teal 7%
- blue 6%
- grey 6%
- green 3%
- white 3%
- pink 2%
Metal
- brown 24%
- black 18%
- red 14%
- blue 11%
- yellow 10%
- orange 9%
- grey 6%
- teal 3%
- pink 2%
- green 1%
- purple 1%
- white 1%
Punk & New Wave
- red 25%
- black 14%
- brown 12%
- grey 11%
- green 7%
- white 7%
- blue 6%
- orange 6%
- yellow 6%
- teal 4%
- pink 1%
- purple 1%
Reggae
- red 21%
- yellow 19%
- brown 18%
- orange 11%
- black 9%
- green 7%
- white 6%
- blue 3%
- teal 3%
- grey 2%
- pink 1%
How the colours are found
Each stripe is one colour of a cover, not the average of it: the average of most covers is a brown. Tidal gives every cover a colour, one of the cover's own colours made dark so that white letters can stand on it. The page looks on the cover for the colour of that hue and takes it as light as it is on the cover. Where the cover has nothing of that hue, or Tidal gives no colour, it takes the cover's largest strong colour, and on a cover without one its largest colour, often a black, a grey or a white.
The names are rough: brown is a red or an orange that is dark and not strong, teal lies between green and blue. An album counts as rock when one of its genres, as the lists have them, is rock, indie, alternative, psychedelia, prog or another of its kind. A decade with fewer than thirty covers, or a genre with fewer than a hundred, is left out of the bands set side by side, and only albums whose cover the site has and looked at are on the page.