Identify the CSS color function

Quick Overview

This question evaluates a candidate's understanding of CSS color functions, specifically knowledge of channel-based color specification and the use of an optional opacity component.

Identify the CSS color function

Company: Toma

Role: Frontend Engineer

Category: Software Engineering Fundamentals

Difficulty: easy

Interview Round: Technical Screen

In CSS, which color function accepts red, green, and blue channel values and can also include an optional opacity value?

Overview: This question evaluates a candidate's understanding of CSS color functions, specifically knowledge of channel-based color specification and the use of an optional opacity component.

Community answers

Answer by m.k

rgb()
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Apr 2, 2026
easyFrontend EngineerTechnical ScreenSoftware Engineering Fundamentals
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In CSS, which color function accepts red, green, and blue channel values and can also include an optional opacity value?

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