https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex <p>I'm afraid there's a bug in RGBToHex. You need to pad each hex value, otherwise your full hex number could end up being 3, 4 or 5 digits. For instance, the following would both generate #22222, despite being different colours: RGBToHex (2, 34, 34); RGBToHex (34, 34, 2); Try this: function RGBToHex($r, $g, $b) { $hex = "#"; $hex.= str_pad(dechex($r), 2, '0', STR_PAD_LEFT ); $hex.= str_pad(dechex($g), 2, '0', STR_PAD_LEFT ); $hex.= str_pad(dechex($b), 2, '0', STR_PAD_LEFT ); return $hex; }</p> Tue, 20 Jul 2010 19:27:53 UTC https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex <p>I'm afraid there's a bug in RGBToHex. You need to pad each hex value, otherwise your full hex number could end up being 3, 4 or 5 digits. For instance, the following would both generate #22222, despite being different colours: RGBToHex (2, 34, 34); RGBToHex (34, 34, 2); Try this: <code> function RGBToHex($r, $g, $b) { $hex = "#"; $hex.= str_pad(dechex($r), 2, '0', STR_PAD_LEFT ); $hex.= str_pad(dechex($g), 2, '0', STR_PAD_LEFT ); $hex.= str_pad(dechex($b), 2, '0', STR_PAD_LEFT ); return $hex; } </code></p> Tue, 20 Jul 2010 19:28:35 UTC https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex <p>Meh, Snipplr doesn't seem to want to display my code properly, but hopefully you get the idea.</p> Tue, 20 Jul 2010 19:29:30 UTC https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex <p>Cool thanks for that info on the bug I fixed the issue.</p> Sat, 16 Oct 2010 11:16:21 UTC https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex <p>Thank you!</p> Sat, 03 Dec 2011 07:34:41 UTC https://ipv6.snipplr.com/view/4621/convert-hex-to-rgb--rgb-to-hex