Under what circumstances would we use the color replacement feature of CorelDRAW bitmap?

Figure 1: CorelDRAW [Replace Color] Function

After using CorelDRAW graphic design software to complete the design, we suddenly feel that a certain part of the color is somewhat inconsistent with the overall design. If we gradually withdraw and redo it, it will not only affect our efficiency but also take up our valuable time; Moreover, bitmap cannot be directly changed in color using fill tools. For example, in the hexagonal shape shown below, after filling each part with color and adding a "vortex" effect, I want to replace the blue area on the left with red to use the color replacement function.

Step 1: Import bitmap materials into CorelDRAW X8 (Windows system) and edit them using Corel PHOTO. I imported a hexagon into CorelDRAW and added different colors and effects to each part.

Figure 2: Importing bitmap materials

Step 2: Click on the menu bar 【 Adjust 】 → 【 Replace Color 】; Adjust the replacement color in the replacement color settings window.

Click on the straw tool after the color selection box of the original color, and use the straw tool to extract any color code from the bitmap object;

Figure 3: CorelDRAW Color Dropper Tool - Absorb Original Color

Use the straw tool with the newly created color to extract the color we want to change;

Figure 4: Extracting replacement colors

After completing the color extraction, we can see the effect of replacing the color through the preview window.

Figure 5: Color Replacement Rendering

Range values for replacing colors:

Moreover, in addition to replacing a certain color, we can also set the selection range for that color. For example, when we set the range to 30, the colors selected by the system are basically the same color code.

Figure 6: Replacing Range at -30

When we adjust the range to 60, the selected area will include colors that are similar to the original color gamut.

Figure 7: Replacing Range at -60

At the same time, we can also adjust parameters such as chromaticity, saturation, and brightness to increase brightness and color in the image. However, it should be noted that when we adjust one of the parameters, the other two parameters will also be adjusted accordingly.

Figure 8: Adjustment of Color Difference Parameters

However, smart friends may have noticed that the replacement color we choose is not directly replaced with the specified color, but is generated by adding the selected color according to the principle of three primary colors. So, to some extent, we can also create a "gradient" effect that is similar to the surrounding colors in the area where the color is replaced.