Change page number color in fncychap

I'm using fncychap Glenn option. My problem is that in the other pages when there is a header and footer i can change the color of the page number by using this code:

\usepackage[Glenn]{fncychap}
\pagestyle{fancy}
\fancyhf{}
\fancyfoot[CE,CO]{\color{myblue} \leftmark}
\fancyfoot[LE,RO]{\color{myblue} \thepage}


but in the pages where there is the chap title the page number is in the default style. So how can i change the color of page number if there is no header and footer in the page.

• Welcome, this is about header-footers, and has nothing to do with fncychap. Please correct the tags when you add an MWE to help us see how the headers and footers are produced in your document. – Johannes_B Jul 7 '19 at 5:24
• Hello johannes, thank you for your reply i edit my post can you see it again please to know what i mean – sally yamak Jul 7 '19 at 7:51

The chapter pages are using a different page style called plain, which can be adjusted separately to include color:

\documentclass{book}

\usepackage{fancyhdr}
\usepackage{xcolor}
\usepackage[Glenn]{fncychap}
\pagestyle{fancy}
\fancyhf{}
\fancyfoot[CE,CO]{\color{blue} \leftmark}
\fancyfoot[LE,RO]{\color{blue} \thepage}

\fancypagestyle{plain}{%