Bolded, colored text throwing "avoid color alone for emphasis" error

[bagofarms]

The following code produces an "Avoid color alone for emphasis" error, even though it is clearly bolded: <span style="color: #cf311f; background-color: #ffffff;"><strong>(3 points)</strong></span>

[taheralfayad]

Hey Jacob,

I was unable to replicate this issue using the provided HTML.

[taheralfayad]

I was unable to recreate the issue with the provided text.