Why CSS dark grey is lighter then the original grey [duplicate]

Question

JSBIN DEMO

Is this some kind of bug or they just made it wrong?

Shouldn't the dark gray be DARKER then the default grey?

HTML

<div class="lightgrey">Light Grey</div>
<div class="grey">Grey</div>
<div class="darkgrey">Dark Grey</div>

CSS

.lightgrey {background: lightgrey}
.grey {background: grey}
.darkgrey {background: darkgrey}

Answer 1

according to W3Schools this seems to be correct.

• darkgray is #A9A9A9
• gray is #808080
• dimgray is #696969