- [Narrator] There are several approaches
to choosing a color.
Partly because there's more than one way
of recording or displaying color
and partly because people like to work
in different ways.
Regardless of the way colors are displayed,
you'll always be making choices
that result in a set of numbers
being assigned to pixels.
In theory, you can always simply
type in color values and this is often
the way to work when producing graphic content
for print press because a logo color,
or branding color, is not a question
of subjective preference.
You'll find professional printers
will often demand black
made from a particular set of values
for which their printer is calibrated.
There are lots of short cut color pickers
available in photo shop but this is the main one.
You actually start with the range of hues
in the vertical strip.
Then use the large square to choose
color intensity and lightness.
You'll notice out of gamut warnings
for print or web.
Gamut is just another word for color range.
If you click the warning, photo shop will choose
a near approximation that is inside the gamut.
You've got one option for web
and one option for print.
A check box, at the bottom,
locks the selection you made to web colors.
These are specific colors designated
to codes used for web design
and these codes are more efficient
way to use color on websites.
At the bottom of the display,
you'll see the color code for the particular
color you've chosen and this field works two ways,
you can paste a code in to get that color.
Then there are lots of color settings.
Some of which may be familiar. Some not.
RGB is red, green, and blue.
CMYK is cyan, magenta, yellow, and black.
These are the reciprocal secondary colors
that relate to RGB color for print purposes.
HSB is hue, saturation, and brightness.
As you can guess, this sets the hue
based on an angle.
A little like viewing a color wheel
as a clock face divided into degrees.
Then the amount of saturation and brightness
gives you the rest of the information
you need to define a color.
LAB is lightness, and then the A and B
are axis on a graph.
It's similar to true YUV color
where all available colors are on a graph
and two axis are used as cross hairs
to choose a particular color.
You'll notice every color you choose
results in values being defined
for every color system.
So you can even use this to translate
from one to another.
The main interface, in photoshop,
has lots of options for visual color selection
or whichever option you choose
you'll ultimately be assigning
one or other of these sets of values
to pixels or vector shapes.