Are the colors displayed in sRGB?

Yes — the game uses sRGB values. Screen calibration can affect how the colors look, so scores may vary slightly between monitors.

What is the just-noticeable difference (JND) for color?

About 2.5–3 ΔE units in the CIE L*a*b* color space under controlled conditions. The hardest levels in this game push color differences close to that threshold.

Does color blindness affect performance significantly?

Yes — red-green color blind players will find rounds in the red-green axis significantly harder. Blue-yellow rounds are easier by comparison.

Can You Match the Color?

Can you match the color — pick the exact swatch from a palette of near-identical colors? A target color is shown and you select the matching swatch from a grid of very similar options. Easy levels have clear hue differences; hard levels differ by just a few points in saturation or lightness on the HSL scale. It's a direct probe of color discrimination: how close can two colors be before your eye can no longer tell them apart?

How to Play

A target color is displayed prominently.
A grid of similar color swatches appears — one is the exact match.
Click the swatch you think matches the target.
Your score tracks accuracy across multiple rounds.

Why It's Hard

Color discrimination varies dramatically by region of color space. Humans are most sensitive to hue changes in blue-cyan and yellow-green ranges, and least sensitive to red-orange transitions. Lightness and saturation differences are even harder to judge precisely. Hard levels exploit the regions of color space where your visual system has the poorest discrimination resolution.

Tips

1Focus on lightness first: is the target lighter or darker than the swatches? Then compare hue.
2Avoid staring at the target color for more than 3 seconds — chromatic adaptation will shift your perception.
3On hard levels, eliminate obvious non-matches first and choose between the two most similar remaining options.

FAQ

Are the colors displayed in sRGB?: Yes — the game uses sRGB values. Screen calibration can affect how the colors look, so scores may vary slightly between monitors.
What is the just-noticeable difference (JND) for color?: About 2.5–3 ΔE units in the CIE L*a*b* color space under controlled conditions. The hardest levels in this game push color differences close to that threshold.
Does color blindness affect performance significantly?: Yes — red-green color blind players will find rounds in the red-green axis significantly harder. Blue-yellow rounds are easier by comparison.

Built by

Ethan R. Caldwell

Game Developer · Wilmington, DE

Designed Can You Match the Color? and 46 other browser puzzles. Game developer based in Wilmington, Delaware. Hardcore puzzle gamer at heart — obsessed with logic puzzles, sokoban-style mechanics, and physics-based brain teasers. Off the clock, unwinds with ARPGs, RPGs and JRPGs.

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