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Adjust hue and saturation
Hue/Saturation lets you adjust the
hue, saturation, and lightness of a specific range of colors in
an image or simultaneously adjust all the colors in an image. This
adjustment is especially good for fine-tuning colors in a CMYK image
so that they are in the gamut of an output device.
You can save Hue/Saturation settings in the Adjustments panel
and load them for reuse in other images. For more information, see Save adjustment settings and Reapply adjustment settings.
Apply Hue/Saturation adjustment- Do
one of the following:
Click the Hue/Saturation icon  or
a Hue/Saturation preset in the Adjustments panel.
Choose Layer > New Adjustment Layer >
Hue/Saturation. Click OK in the New Layer dialog box. The
two color bars in the dialog box represent the colors in their order
on the color wheel. The upper color bar shows the color before the adjustment;
the lower bar shows how the adjustment affects all of the hues at full
saturation.
Note: You can also choose Image > Adjustments > Hue/Saturation.
But keep in mind that this method makes direct adjustments to the
image layer and discards image information.
- In the Adjustments panel, choose which colors to adjust
using the Edit pop-up menu:
Choose Master to adjust all colors at once.
Choose one of the other preset color ranges listed
for the color you want to adjust. To modify the color range, see Adjust hue and saturation.
- For Hue, enter a value or drag the slider until you are
satisfied with the colors.
The values displayed in the box reflect the number of degrees
of rotation around the wheel from the original color of the pixel.
A positive value indicates clockwise rotation; a negative value,
counterclockwise rotation. Values can range from ‑180 to +180.
 Color wheel - A.
- Saturation
- B.
- Hue
 You can also select the On-image adjustment
tool  in
the Adjustments panel and then Ctrl-click (Windows) or Command-click
(Mac OS) on a color in the image. Drag left or right in the image
to modify the hue value.
- For Saturation, enter a value or drag the slider to the
right to increase the saturation or to the left to decrease it.
The color shifts away from or toward the center of the
color wheel. Values can range from ‑100 (percentage of desaturation,
duller colors) to +100 (percentage of saturation increase).
You can also , select the On-image adjustment
tool in
the Adjustments panel and click on a color in the image. Drag left
or right in the image to decrease or increase saturation of the
color range that includes the pixel you clicked.
- For Lightness, enter a value or drag the slider to the
right to increase the lightness (add white to a color) or to the
left to decrease it (add black to a color). Values can range from
‑100 (percentage of black) to +100 (percentage of white).
Note: Click the Reset button  to
undo a Hue/Saturation setting in the Adjustments panel.
Specify the range of colors adjusted in the Hue/Saturation adjustment- Do one of the following:
Note: You can also choose Image > Adjustments > Hue/Saturation.
But keep in mind that this method makes direct adjustments to the
image layer and discards image information.
- In the Adjustments panel, choose a color from the menu
just above the sliders.
Four color wheel values (in degrees) appear in the Adjustments
panel. They correspond to the adjustment sliders that appear between
the color bars. The two inner vertical sliders define the color
range. The two outer triangle sliders show where the adjustments
on a color range “fall off” (fall‑off is a feathering
or tapering of the adjustments instead of a sharply defined on/off
application of the adjustments).
- Use
either the eyedropper tools or the adjustment sliders to modify
the range of colors.
Click or drag in the image with the Eyedropper
tool  to
select a color range. To expand the range, click or drag in the
image with the Add To Sample Eyedropper tool  . To
reduce the range of color, click or drag in the image with the Subtract
From Sample Eyedropper tool  . While
an eyedropper tool is selected, you can also press Shift to add
to the range, or Alt (Windows) or Option (Mac OS) to subtract
from it.
Drag one of the white triangle sliders to adjust
the amount of color fall‑off (feathering of adjustment) without
affecting the range.
Drag the area between the triangle and the vertical
bar to adjust the range without affecting the amount of fall‑off.
Drag the center area to move the entire adjustment
slider (which includes the triangles and vertical bars) to select
a different color area.
Drag one of the vertical white bars to adjust the
range of the color component. Moving a vertical bar from the center
of the adjustment slider and closer to a triangle increases the
color range and decreases the fall‑off. Moving a vertical bar closer
to the center of the adjustment slider and away from a triangle decreases
the color range and increases the fall‑off.
Ctrl-drag (Windows) or Command-drag (Mac OS)
the color bar so that a different color is in the center of the
bar.
 Hue/Saturation adjustment slider - A.
- Hue slider values
- B.
- Adjusts
fall‑off without affecting range
- C.
- Adjusts
range without affecting fall‑off
- D.
- Adjusts
range of color and fall‑off
- E.
- Moves
entire slider
If
you modify the adjustment slider so that it falls into a different
color range, the name in the Edit menu changes to reflect this change.
For example, if you choose Yellow and alter its range so that it
falls in the red part of the color bar, the name changes to Red 2.
You can convert up to six of the individual color ranges to varieties
of the same color range (for example, Red through Red 6).
Note: By default, the range of color selected when you
choose a color component is 30° wide, with 30° of fall‑off on either
side. Setting the fall‑off too low can produce banding in the image.
Colorize a grayscale image or create a monotone effect- If you are colorizing a grayscale
image, choose Image > Mode > RGB Color to convert
the image to RGB.
- Do one of the following to access the Hue/Saturation
adjustment:
Note: You can also choose Image > Adjustments > Hue/Saturation.
But keep in mind that this method makes direct adjustments to the
image layer and discards image information.
- Select the Colorize option. If the foreground color is
black or white, the image is converted to a red hue (0°). If the
foreground color is not black or white, the image is converted to
the hue of the current foreground color. The lightness value of
each pixel does not change.
- (Optional) Use the Hue slider to select a new color.
Use the Saturation and Lightness sliders to adjust the saturation
and lightness of the pixels.
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PDF (adobe.com)
