Found what appears to be Write-Host code here:
Powershell-Misc/Write-Host.ps1 at master · beatcracker/Powershell-Misc · GitHub
Found ANSI escape codes here:
ANSI escape code - Wikipedia
Found color orange here: RGB Color Codes Chart
Built this code based on info taken from the above:
$Esc = [char]27
$Ansi24BitTemplate = "$Esc[{0};2;{1};{2};{3}m"
$Ansi24BitFore = '38'
$Ansi24BitBack = '48'
$OrangeForeColor = $Ansi24BitTemplate -f $Ansi24BitFore, 255, 165, 0
$OrangeBackColor = $Ansi24BitTemplate -f $Ansi24BitBack, 255, 165, 0
Write-Host "$($OrangeBackColor)Testing" -ForegroundColor Black
Write-Host "$($OrangeForeColor)Testing" -BackgroundColor Black
Which gave this output:
NOTE: This will not work on some older equipment and in some situations. But I believe it will work in the majority of Windows 10 computer.