About the Colordle color for December 23, 2023
Colordle #638 was published on Saturday, December 23, 2023. The daily puzzle resets at midnight in the player's local time, so the color you'd see on that calendar day depends on where you opened it.
The answer was Bright Green at hex code #66FF00, decoding to RGB 102, 255, 0. That puts it in the green family, which designers typically reach for when they need eco and finance branding, growth metrics, and outdoor interfaces. The tone reads as calm, balanced, and reassuring.
On the brightness scale, Bright Green scores roughly 707 out of 255, making it A bright shade that pops on dark canvases and works as a highlight, though it can feel harsh on large fills. It's also warm-leaning, so it will play nicely against cool blues and grays as a contrast accent in most layouts. If you're trying to recreate this color in Figma, Photoshop, or a CSS variable, copy the hex directly; if you need screen-space matching, the RGB triplet above lands you on the same swatch.
The day before this puzzle was (archived). Scanning a short run of recent answers is a useful way to see whether the curator has been leaning toward a particular palette that week, and it gives you a baseline for guessing future puzzles when a hex doesn't ring a bell. The full archive on this site indexes every Colordle back to launch, so you can flip through months at a time.
For working solvers, the Colordle helper on this site applies the same RGB distance math the official game uses, so you can plug a guess into it and get a near-match back without burning through your daily attempts.