About the Colordle color for September 16, 2023
Colordle #540 was published on Saturday, September 16, 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 Dark at hex code #1B2431, decoding to RGB 27, 36, 49. That puts it in the dark neutral family, which designers typically reach for when they need editorial dark mode, charcoal backdrops, and dense data UIs. The tone reads as serious, premium, and easy on the eyes in low light.
On the brightness scale, Dark scores roughly 136 out of 255, making it A middle-brightness value that pairs comfortably with both light and dark surfaces. It's also cool-leaning, so it will play nicely against warm oranges and yellows as a counterweight 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.