Color Golf

Make the left color match the right using RGB deltas.

Game setup

Goal: Make the left swatch (your “current” color) match the right swatch (the “target”) by typing RGB deltas (changes) and hitting Make Move. Each move is three positive or negative integers; leaving a box blank counts as 0.

What a move does: The game adds your three deltas to the current color, clamps each channel to 0–255, logs the triple in the move list, bumps the move counter, and repaints the swatches. After every move it computes the Manhattan distance in RGB |Rcur−Rtar| + |Gcur−Gtar| + |Bcur−Btar| (not visible to the player). You win when that sum is ≀ the chosen tolerance.

Hints (HSL): Once per move you can tap Get HSL Hint. It converts both colors to HSL and tells you to increase/decrease Hue, Saturation, Lightness. It tracks Hints Used.

UI niceties: A running ordered list records your entered deltas like (+10, -5, 0). Tip: tap the R/G/B labels to flip the sign of that input (useful in phones where the numeric keyboard has no hyphen-minus).

How to play

  • Type three deltas for R, G, B. Leave blank for 0.
  • Click Make Move. Channels are clamped to 0–255.
  • Use Get HSL Hint once per move. It increments Hints Used.
  • You win when the hidden RGB Manhattan distance ≀ tolerance.
  • Add ?british to the URL for “Colour Golf”.