Color picker and hex values in Figma - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Hex Color Codes

What does the hex color code #FF5733 represent in terms of red, green, and blue values?

A Red: 51, Green: 87, Blue: 255

B Red: 87, Green: 255, Blue: 51

C Red: 255, Green: 87, Blue: 51

D Red: 255, Green: 51, Blue: 87

💡 Hint

Remember that hex codes are in the format #RRGGBB, where each pair represents red, green, and blue in hexadecimal.

The first two characters after the # represent red, the next two green, and the last two blue. FF in hex is 255 in decimal, 57 is 87, and 33 is 51.

❓ dax_lod_result

intermediate

Using Hex Colors in Dashboard Visuals

You want to set a bar chart color dynamically in Power BI using a hex color code stored in a table column named ColorHex. Which DAX measure correctly converts the hex code #1E90FF to a color for the visual?

A ColorMeasure = SELECTEDVALUE(Table[ColorHex])

B ColorMeasure = "#1E90FF"

C ColorMeasure = FORMAT(Table[ColorHex], "Color")

D ColorMeasure = HEX2DEC(Table[ColorHex])

💡 Hint

Power BI visuals accept hex color codes as text strings for color formatting.

The measure returns the hex color code as text from the table column. This text can be used in conditional formatting for colors. Other options either hardcode the color or use invalid functions.

❓ visualization

advanced

Best Practice for Color Contrast in Dashboards

Which option best describes a practice to ensure text is readable over colored backgrounds chosen via hex codes in dashboards?

A Use colors with high contrast ratios and test with tools to ensure accessibility.

B Use any bright color as background and white text always.

C Use colors randomly to keep the dashboard colorful and engaging.

D Use only dark colors for backgrounds and ignore text color contrast.

💡 Hint

Think about how people with vision difficulties read text on colored backgrounds.

High contrast between text and background colors improves readability and accessibility. Tools can check contrast ratios to meet standards.

🎯 Scenario

advanced

Applying Hex Colors in Conditional Formatting

You want to highlight sales values above target in green (#28A745) and below target in red (#DC3545) using hex colors in a Power BI table. Which approach correctly applies this conditional formatting?

A Manually set cell colors in the table without using measures or hex codes.

B Apply conditional formatting only on the background color without using hex codes.

C Use RGB decimal values instead of hex codes in conditional formatting rules.

D Create a measure returning hex color based on sales vs target, then use it in conditional formatting for font color.

💡 Hint

Think about how dynamic colors can be applied based on data values.

Using a measure that returns hex color codes based on conditions allows dynamic and clear formatting in Power BI visuals.

🔧 Formula Fix

expert

Troubleshooting Hex Color Usage in Dashboard

A dashboard developer uses the hex color code #GGHHII in a visual's color setting. What will happen when the dashboard renders?

A The color will render as black because invalid hex codes default to black.

B The dashboard will show an error or default color because <code>#GGHHII</code> is not a valid hex code.

C The dashboard will ignore the color and leave the visual uncolored.

D The dashboard will convert the invalid hex to the closest valid color automatically.

💡 Hint

Hex color codes must use digits 0-9 and letters A-F only.

Hex codes with letters outside A-F are invalid and cause errors or fallback to default colors in most BI tools.