Colours of the PowerShell Rainbow

See PowerShell’s built-in foreground and background printing colours via the following command:

[enum]::GetValues([ConsoleColor]) | % {Write-Host $_ -ForegroundColor $_} 

The non-colour-coded list:

Gray DarkGray
Blue DarkBlue
Green DarkGreen
Cyan DarkCyan
Red DarkRed
Magenta DarkMagenta
Yellow DarkYellow
White Black

Source