Test your color perception by matching HEX values, finding complementary colors, and identifying hues.
Color Matching Game turns three related color-reading tasks into browser exercises: associate a displayed color with a HEX value, answer a complementary-color prompt, and identify a hue. Each prompt asks for a visual judgment, then checks that judgment against the exercise's expected answer. It is useful for practicing the link between numeric RGB notation and visible color. The easy mistake is to read a six-digit HEX value as one number. It is three ordered pairs - red, green, then blue - and changing their order changes the color.
In a HEX-matching prompt, read #RRGGBB as three hexadecimal component values. 00 is the minimum and FF the maximum for each red, green, and blue component. Comparing the relative sizes of those pairs helps distinguish, for example, a blue-heavy value from a red-heavy one. The round tests whether your visual choice and the target notation refer to the same color.
The other prompts focus on color relationships rather than direct notation matching. A complementary question asks for the color the exercise treats as opposite the target, while a hue question asks you to classify the target's basic color family. These are perceptual judgments: exact-looking answers can become less obvious near hue boundaries or when a color is dark, pale, or low in saturation.
No. A game result can reflect display conditions, lighting, familiarity with HEX notation, guessing, and the particular colors shown. Clinical color-vision assessment uses controlled tests and professional interpretation. Treat repeated difficulty as a possible reason to seek an appropriate assessment, not as a diagnosis produced by this tool.
Not necessarily. Subtracting each component from FF produces an RGB inverse. A complement defined as a 180-degree hue rotation can yield a different HEX value because it preserves different properties. Use the convention established by the game's expected answer, and do not assume that every color application defines complementary colors identically.
The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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