diff --git a/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFTextParagraph.java b/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFTextParagraph.java
index 0d33e0c4f66..69fdb2f082e 100644
--- a/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFTextParagraph.java
+++ b/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFTextParagraph.java
@@ -28,6 +28,7 @@ Licensed to the Apache Software Foundation (ASF) under one or more
 import org.apache.poi.xssf.model.ParagraphPropertyFetcher;
 import org.apache.xmlbeans.XmlObject;
 import org.openxmlformats.schemas.drawingml.x2006.main.*;
+import org.openxmlformats.schemas.drawingml.x2006.main.impl.STPositiveFixedPercentageImpl;
 import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTShape;
 
 /**
@@ -863,6 +864,41 @@ private boolean fetchParagraphProperty(ParagraphPropertyFetcher visitor){
         return ok;
     }
 
+    public void setTextFillColor(XSSFColor color) {
+        if (getTextRuns().isEmpty()) {
+            addNewTextRun();
+        }
+        XSSFTextRun run = getTextRuns().get(getTextRuns().size() - 1);
+        if (!run.getRPr().isSetSolidFill()) {
+            run.getRPr().addNewSolidFill();
+        } else if (run.getRPr().getSolidFill().isSetSrgbClr()){
+            run.getRPr().getSolidFill().unsetSrgbClr();
+        } else if (run.getRPr().getSolidFill().isSetScrgbClr()){
+            run.getRPr().getSolidFill().unsetScrgbClr();
+        } else if (run.getRPr().getSolidFill().isSetSchemeClr()){
+            run.getRPr().getSolidFill().unsetSchemeClr();
+        } else if (run.getRPr().getSolidFill().isSetSysClr()){
+            run.getRPr().getSolidFill().unsetSysClr();
+        } else if (run.getRPr().getSolidFill().isSetHslClr()){
+            run.getRPr().getSolidFill().unsetHslClr();
+        } else if (run.getRPr().getSolidFill().isSetPrstClr()){
+            run.getRPr().getSolidFill().unsetPrstClr();
+        }
+        CTSRgbColor srgbClr = run.getRPr().getSolidFill().addNewSrgbClr();
+        srgbClr.setVal(color.getRGB());
+        byte[] argbArray = color.getARGB();
+        if (argbArray[0] != -1) {
+            int unsignedTransparency;
+            if (argbArray[0] >= 0) {
+                unsignedTransparency = argbArray[0];
+            } else {
+                unsignedTransparency = 255 & argbArray[0];
+            }
+            int alphaInTenthOfPercent = 100_000 * unsignedTransparency / 255;
+            srgbClr.addNewAlpha().setVal(alphaInTenthOfPercent);
+        }
+    }
+
     @Override
     public String toString(){
         return "[" + getClass() + "]" + getText();
diff --git a/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFTextParagraph.java b/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFTextParagraph.java
index bfd4814419c..750841e13a7 100644
--- a/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFTextParagraph.java
+++ b/src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFTextParagraph.java
@@ -19,10 +19,12 @@ Licensed to the Apache Software Foundation (ASF) under one or more
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.awt.Color;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.List;
 
 import org.junit.jupiter.api.Test;
+import org.openxmlformats.schemas.drawingml.x2006.main.CTSolidColorFillProperties;
 
 public class TestXSSFTextParagraph {
     @Test
@@ -192,4 +194,105 @@ public void testXSSFTextParagraph() throws IOException {
             new XSSFTextParagraph(text.getXmlObject(), shape.getCTShape());
         }
     }
+    @Test
+    public void testXSSFTextParagraphWithAlpha() throws IOException {
+        try (XSSFWorkbook wb = new XSSFWorkbook()) {
+            XSSFSheet sheet = wb.createSheet();
+            XSSFDrawing drawing = sheet.createDrawingPatriarch();
+            XSSFTextBox shape = drawing.createTextbox(new XSSFClientAnchor(0, 0, 0, 0, 2, 2, 3, 4));
+            XSSFRichTextString rt = new XSSFRichTextString("Test String");
+
+            XSSFFont font = wb.createFont();
+            Color color = new Color(0, 255, 255, 10);
+            XSSFColor textColor = new XSSFColor(color, wb.getStylesSource().getIndexedColors());
+            textColor.setARGBHex("0A00FFFF");
+            font.setColor(textColor);
+            font.setFontName("Arial");
+            rt.applyFont(font);
+            shape.setText(rt);
+
+            List<XSSFTextParagraph> paras = shape.getTextParagraphs();
+            assertEquals(1, paras.size());
+            paras.get(0).setTextFillColor(textColor);
+            XSSFTextParagraph testedParagraph = paras.get(0);
+            CTSolidColorFillProperties properties = testedParagraph.getTextRuns()
+                    .get(testedParagraph.getTextRuns().size() - 1)
+                    .getRPr()
+                    .getSolidFill();
+            assertNotNull(properties);
+            assertNotNull(properties.getSrgbClr());
+            assertEquals(textColor.getRGB()[0], properties.getSrgbClr().getVal()[0]);
+            assertEquals(textColor.getRGB()[1], properties.getSrgbClr().getVal()[1]);
+            assertEquals(textColor.getRGB()[2], properties.getSrgbClr().getVal()[2]);
+            // 10 is 3.921% of transparency therefore 3912 1000th% of transparency
+            assertEquals(3921, properties.getSrgbClr().getAlphaArray()[0].getVal());
+        }
+    }
+    @Test
+    public void testXSSFTextParagraphWithoutAlpha() throws IOException {
+        try (XSSFWorkbook wb = new XSSFWorkbook()) {
+            XSSFSheet sheet = wb.createSheet();
+            XSSFDrawing drawing = sheet.createDrawingPatriarch();
+            XSSFTextBox shape = drawing.createTextbox(new XSSFClientAnchor(0, 0, 0, 0, 2, 2, 3, 4));
+            XSSFRichTextString rt = new XSSFRichTextString("Test String");
+
+            XSSFFont font = wb.createFont();
+            Color color = new Color(0, 255, 255, 10);
+            XSSFColor textColor = new XSSFColor(color, wb.getStylesSource().getIndexedColors());
+            font.setColor(textColor);
+            font.setFontName("Arial");
+            rt.applyFont(font);
+            shape.setText(rt);
+
+            List<XSSFTextParagraph> paras = shape.getTextParagraphs();
+            assertEquals(1, paras.size());
+            paras.get(0).setTextFillColor(textColor);
+            XSSFTextParagraph testedParagraph = paras.get(0);
+            CTSolidColorFillProperties properties = testedParagraph.getTextRuns()
+                    .get(testedParagraph.getTextRuns().size() - 1)
+                    .getRPr()
+                    .getSolidFill();
+            assertNotNull(properties);
+            assertNotNull(properties.getSrgbClr());
+            assertEquals(textColor.getRGB()[0], properties.getSrgbClr().getVal()[0]);
+            assertEquals(textColor.getRGB()[1], properties.getSrgbClr().getVal()[1]);
+            assertEquals(textColor.getRGB()[2], properties.getSrgbClr().getVal()[2]);
+            // 10 is 3.921% of transparency therefore 3912 1000th% of transparency
+            assertEquals(0, properties.getSrgbClr().getAlphaArray().length);
+        }
+    }
+    @Test
+    public void testXSSFTextParagraphNegativeByteAlpha() throws IOException {
+        try (XSSFWorkbook wb = new XSSFWorkbook()) {
+            XSSFSheet sheet = wb.createSheet();
+            XSSFDrawing drawing = sheet.createDrawingPatriarch();
+            XSSFTextBox shape = drawing.createTextbox(new XSSFClientAnchor(0, 0, 0, 0, 2, 2, 3, 4));
+            XSSFRichTextString rt = new XSSFRichTextString("Test String");
+
+            XSSFFont font = wb.createFont();
+            Color color = new Color(0, 255, 255, 10);
+            XSSFColor textColor = new XSSFColor(color, wb.getStylesSource().getIndexedColors());
+            textColor.setARGBHex("FA00FFFF");
+            //font.setColor(textColor);
+            font.setFontName("Arial");
+            rt.applyFont(font);
+            shape.setText(rt);
+
+            List<XSSFTextParagraph> paras = shape.getTextParagraphs();
+            assertEquals(1, paras.size());
+            paras.get(0).setTextFillColor(textColor);
+            XSSFTextParagraph testedParagraph = paras.get(0);
+            CTSolidColorFillProperties properties = testedParagraph.getTextRuns()
+                    .get(testedParagraph.getTextRuns().size() - 1)
+                    .getRPr()
+                    .getSolidFill();
+            assertNotNull(properties);
+            assertNotNull(properties.getSrgbClr());
+            assertEquals(textColor.getRGB()[0], properties.getSrgbClr().getVal()[0]);
+            assertEquals(textColor.getRGB()[1], properties.getSrgbClr().getVal()[1]);
+            assertEquals(textColor.getRGB()[2], properties.getSrgbClr().getVal()[2]);
+            // 250 is 3.921% of transparency therefore 3912 1000th% of transparency
+            assertEquals(98039, properties.getSrgbClr().getAlphaArray()[0].getVal());
+        }
+    }
 }