Linux background issue

A copy of the HTML code that produces the boxes would be helpful.  Just offhand there is no reason I can think of that colors should not be identical when HTML is delivered by Apache or any other server.

Also worth mentioning: which browser is that user running on RPI? This is not about Linux, it is about the browser.

The browser that is used on these computers is Midori

This is snippet of the code in which I am having the issue.

<asp:TableCell runat="server" Text="Department:"
                            ForeColor="#FFFFCC" Width="35%" HorizontalAlign="Left" VerticalAlign="Middle"
                            Font-Names="Arial" Font-Bold="False" Font-Size="12">
                            </asp:TableCell>
                            <asp:TableCell ID="TableCell130" runat="server" CssClass="TextBoxCell" ColumnSpan="3"
                            Width="65%">
                                <asp:DropDownList ID="DeptList" runat="server" Width="95%" BackColor="Black"
                                BorderColor="Gray" BorderStyle="Inset" BorderWidth="2" Font-Bold="False"
                                Font-Names="Arial" Font-Size="12" ForeColor="#FFFFCC"
                                AutoPostBack="True" >
                                    <asp:ListItem></asp:ListItem>
                                    <asp:ListItem>Mixing</asp:ListItem>
                                    <asp:ListItem>Extrusion</asp:ListItem>
                                    <asp:ListItem>Engineering</asp:ListItem>
                                    <asp:ListItem>Admin</asp:ListItem>
                                </asp:DropDownList>
                            </asp:TableCell>

Can you try Midori for Windows and see whether it shows the same issue? http://midori-browser.org/download/

If so then it's a Midori issue - try another browser on the RPI decice, if not then it could be a graphics issue on the RPI where it has less colors to display (like 256 instead of 16M).

Yes I have tested it in Midori and the behavior is the same.

So, what distribution is running on the device? Did you try another browser or is knowing that Midori is the issue enough for you?

What distribution is running on the device?  What does that mean?

What Linux distribution as in:

Raspbian
Pidora
Snappy Ubuntu Core
(RISC OS)

You mean the source of download?

No what has been installed, what is currently running on that RPI device. So we can advise a different browser to install.

Linux version 3.12.28+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03) ) #709

Browser:       Midori 0.4.3

Browser is set to render HTML Font-colors using UniCode

Is this:

Raspbian
Pidora
Snappy Ubuntu Core
(RISC OS)

see my previous question.

I don't know the answer to your question.  At this point it is unknown.

Thank for the time to answer this question.