Nuance — free browser game

Nuance is a short hand-based color-memory game. Each hand has three steps. (1) PEEK: a large target color appears in the top half of the screen; the square stays visible for a limited window — 1.6 seconds in early hands, dropping to 0.6 seconds in late ones. Observe the color and try to estimate its RGB components during that window. (2) COVER: the target auto-hides and a grey mask takes its place; below it, the color you are currently building is shown live. Use three sliders (R, G, B; 0-255 each) to reconstruct the hue. Drag the handle with mouse or touch, or click anywhere on the rail to jump to that value; on the keyboard, Tab cycles between sliders and ← / → nudges the focused slider by one (Shift for five). (3) LOCK IN: pressing Enter commits your guess; the target reappears, the two squares are shown side by side, your RGB deviation is reported, and a 0-100 score is written for the hand. Score is derived from the Euclidean distance in RGB space: zero distance = 100 points, ~441 (the theoretical max) = 0 points. A run is 8 hands; each hand's score adds to a total that maxes out at 800. After locking in, the next hand starts after a brief 'next' pause. When all hands are over, your overall score is saved in your browser and compared to your previous best. New series (N key) restarts. Strategy tip: in the early hands, find the DOMINANT channel first (is the target reddish, greenish, or bluish?), push that slider to roughly 200, then nudge the other two; for pastel/grey tones, keep the three channels close and focus on overall brightness; for vibrant tones, set one channel to the maximum 255 and keep the others low. Estimate values while the target is still on screen — if a red leans toward orange, expect high R + medium G + low B. Trust your gut; over-fiddling the sliders usually drags you away from your first instinct. R always resets the series.