Color Scales

I use both AutoCAD and Photoshop to create maps.  I often have trouble predicting printed results for autocad because it doesnt offer some of the features like monitor calibration etc.  Im not familiar with hex charts or color number charts at all.  Is there a website or something that can help me out.  The color I want to be diplayed in Autocad comes up as FFF9A5, however Autocad uses a number like 255,255,163.  How do I convert FFF9A5 to a number I can use in Autocad.  In general, I find this color matching stuff very confusing.

Thanks,

Bill
LVL 11
BillPowellAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

spiderfixCommented:
You can run this...save in Notepad as *.html

-----------------------  cut  --------------------------
<html>
<head>
<title>color converter</title>
<script language="JavaScript">
redValue = 255;
blueValue = 255;
greenValue = 255;
redForeValue = 0;
blueForeValue = 0;
greenForeValue = 0;
maxValue = 255;
hexValues = new Array("0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F");
i = 0;
function toHex(integer) {
hexDigit1 = Math.floor(integer / 16);
hexDigit2 = (integer % 16);
return hexValues[hexDigit1] + hexValues[hexDigit2];
}
function shiftFG() {
redFGHex = toHex(redForeValue);
blueFGHex = toHex(blueForeValue);
greenFGHex = toHex(greenForeValue);
bigFGHex = redFGHex + greenFGHex + blueFGHex;
document.fgColor = bigFGHex;
document.Interface.fgHex.value = bigFGHex;
document.Interface.redFG.value = redForeValue;
document.Interface.blueFG.value = blueForeValue;
document.Interface.greenFG.value = greenForeValue;
}
function shiftBG() {
redHex = toHex(redValue);
blueHex = toHex(blueValue);
greenHex = toHex(greenValue);
bigHex = redHex + greenHex + blueHex;
document.bgColor = bigHex;
document.Interface.bgHex.value = bigHex;
document.Interface.red.value = redValue;
document.Interface.blue.value = blueValue;
document.Interface.green.value = greenValue;
}
function incrementRed(isBackground) {
if (isBackground == true ) {
redValue = redValue + 8;
if (redValue > maxValue) {
redValue = 0;
}
shiftBG();
}
if (isBackground == false) {
redForeValue = redForeValue + 8;
if (redForeValue > maxValue) {
redForeValue = 0;
}
shiftFG();
   }
}
function decrementRed(isBackground) {
if (isBackground == true) {
redValue = redValue - 8;
if (redValue < 0 ) {
redValue = 255;
}
shiftBG();
}
else {
redForeValue = redForeValue - 8;
if (redForeValue < 0) {
redForeValue = 255;
}
shiftFG();
   }
}
function setRed(value, isBackground) {
if(value > -1 && value < 256) {
if( isBackground == true ) {
redValue = value;
shiftBG();
}
else {
redForeValue = value;
shiftFG();
      }
   }
}
function incrementBlue(isBackground) {
if ( isBackground == true ) {
blueValue = blueValue + 8;
if (blueValue > maxValue) {
blueValue = 0;
}                  
shiftBG();
}
else {
blueForeValue = blueForeValue + 8;
if ( blueForeValue > maxValue ) {
blueForeValue = 0;
}
shiftFG();
   }
}
function decrementBlue(isBackground) {
if (isBackground == true) {
blueValue = blueValue - 8;
if (blueValue < 0) {
blueValue = 255;
}
shiftBG();
}
else {
blueForeValue = blueForeValue - 8;
if (blueForeValue < 0) {
blueForeValue = 255;
}
shiftFG();
   }
}
function setBlue(value, isBackground) {
if (value > -1 && value < 256) {
if ( isBackground == true ) {
blueValue = value;
shiftBG();
}
else {
blueForeValue = value;
shiftFG();
      }
   }
}
function incrementGreen(isBackground) {
if (isBackground == true) {
greenValue = greenValue + 8;
if (greenValue > maxValue) {
greenValue = 0;
}
shiftBG();
}
else {
greenForeValue = greenForeValue + 8;
if (greenForeValue > maxValue) {
greenForeValue = 0;
}
shiftFG();
   }
}
function decrementGreen(isBackground) {
if (isBackground == true) {
greenValue = greenValue - 8;
if (greenValue < 0 ) {
greenValue = 255;
}
shiftBG();
}
else {
greenForeValue = greenForeValue - 8;
if (greenForeValue < 0) {
greenForeValue = 255;
}
shiftFG();
   }
}
function setGreen(value, isBackground) {
if ( value > -1 && value < 256 ) {
if ( isBackground == true ) {
greenValue = value;
shiftBG();
}
else {
greenForeValue = value;
shiftFG();
      }
   }
}
function unHex(string, fgbg) {
hex = string.toUpperCase();
counter = 0;
while (hex.charAt(0) != hexValues[counter])
counter++;
r = 16 * counter;
counter = 0;
while (hex.charAt(1) !=  hexValues[counter])
counter++;
r = r + counter;
counter = 0;
while (hex.charAt(2) != hexValues[counter])
counter++;
g = 16 * counter;
counter = 0;
while (hex.charAt(3) != hexValues[counter])
counter++;
g = g + counter;
counter = 0;
while (hex.charAt(4) != hexValues[counter])
counter++;
b = 16 * counter;
counter = 0;
while (hex.charAt(5) != hexValues[counter])
counter++;
b = b + counter;
if (fgbg == "bg") {
redValue = r;
blueValue = b;
greenValue = g;
document.Interface.red.value = redValue;
document.Interface.blue.value = blueValue;
document.Interface.green.value = greenValue;
}
if (fgbg == "fg") {
redForeValue = r;
blueForeValue = b;
greenForeValue = g;
document.Interface.redFG.value = redForeValue;
document.Interface.blueFG.value = blueForeValue;
document.Interface.greenFG.value = greenForeValue;
   }
}      
function validChar(char) {
for (j = 0; j < hexValues.length; j++) {
if (char == hexValues[j]) {
return true;
   }
}
return false;
}
function isHex(string) {
if (string.length != 6) {
return false;
}
for (k = 0; k < 6; k++) {
if (! validChar(string.charAt(k))) {
return false;
   }
}
return true;
}
function setBGHex(value) {
if (isHex(value.toUpperCase())) {
document.bgColor = value;
unHex(value, "bg");
   }
}
function setFGHex(value) {
if (isHex(value.toUpperCase())) {
document.fgColor = value;
unHex(value, "fg");
   }
}
</script>

</head>
<body>
<center>
<form name=Interface>
<table border=4 cellspacing=0 cellpadding=4>
<tr>
<td colspan=3 align=center>Background</td>
<td><input type=text name=bgHex onKeyup="setBGHex(this.value)"></td>
<td colspan=2 align=center>Foreground</td>
<td><input type=text name=fgHex onKeyup="setFGHex(this.value)"></td>
</tr>
<tr>
<td>Red</td>
<td><input type=button value=" + " onClick="incrementRed(true)"></td>
<td><input type=button value=" - " onClick="decrementRed(true)"></td>
<td><input type=text name="red" onKeyup="setRed(this.value, true)"></td>
<td><input type=button value=" + " onClick="incrementRed(false)"></td>
<td><input type=button value=" - " onClick="decrementRed(false)"></td>
<td><input type=text name=redFG onKeyup="setRed(this.value, false)"></td>
</tr>
<tr>
<td>Green</td>
<td><input type=button value=" + " onClick="incrementGreen(true)"></td>
<td><input type=button value=" - " onClick="decrementGreen(true)"></td>
<td><input type=text name="green" onKeyup="setGreen(this.value, true)"></td>
<td><input type=button value=" + " onClick="incrementGreen(false)"></td>
<td><input type=button value=" - " onClick="decrementGreen(false)"></td>
<td><input type=text name=greenFG onKeyup="setGreen(this.value, false)"></td>
</tr>
<tr>
<td>Blue</td>
<td><input type=button value=" + " onClick="incrementBlue(true)"></td>
<td><input type=button value=" - " onClick="decrementBlue(true)"></td>
<td><input type=text name="blue" onKeyup="setBlue(this.value, true)"></td>
<td><input type=button value=" + " onClick="incrementBlue(false)"></td>
<td><input type=button value=" - " onClick="decrementBlue(false)"></td>
<td><input type=text name=blueFG onKeyup="setBlue(this.value, false)"></td>
</tr>
</table>
</form></center>
</body>
</html>
-----------------------  cut  --------------------------

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
spiderfixCommented:
I just ran that FFF9A5 in the little JavaScript ditty, it converts to
R = 255
G = 249
B = 165
BillPowellAuthor Commented:
OK.  Seems good.  Should there be a button to initiate the conversion.  When I paste FFF9A5 into the box at the top, theres no effect on the RGB values.  However,  if I put values in the RGB boxes, it displays the correct number in the top box.  Am I reading this right.

Bill
Become a Microsoft Certified Solutions Expert

This course teaches how to install and configure Windows Server 2012 R2.  It is the first step on your path to becoming a Microsoft Certified Solutions Expert (MCSE).

spiderfixCommented:
The RGB values should show up automatically.

Try my online one and match the source code to the one you made.

http://seafoods.hypermart.net/hex_color/color_converter.html

hypermart is going to throw some popups and/or inject some code
into the page so be aware of that addition of code.
BillPowellAuthor Commented:
OK, I see, your using the onKeyup event.  I was pasting a value into the textbox so the event did not fire unless I type it in manually.
spiderfixCommented:
Pasting should be working in those cells as well as typing it out.

What O/S are you using?
What browser?
BillPowellAuthor Commented:
Ive tried this on:

Windows 2000
Windows ME

IE 6

But you know what, I know enough html and javascript to take it from here.  Thanks for your help.

Bill
spiderfixCommented:
Sounds good, glad to help.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Adobe Creative Suite CS

From novice to tech pro — start learning today.