Color games
HEX Guess Game
See a color swatch, type your best 6-digit HEX code, then submit to see target vs guess. Daily (UTC) + practice.
HEX Guess GameRound 1/5
Target
Tip: if you want a wheel instead of typing, try Color Memory or Color Speed.
Your HEX guess
Example: #1f2937
How it works
This game is the “typing” version of color matching. Instead of a wheel, you enter a HEX code directly. It’s great if you work with design tokens or want to learn how colors map to code.
If you’d rather pick by wheel, try Color Guesser or Color Memory.
Scoring (ΔE-like, perceptual)
We score similarity using an OKLab-based ΔE-like distance. Smaller perceptual differences earn higher points. This better matches how humans compare colors than plain RGB channel differences.
Learn more in ΔE & OKLab scoring explained.
Tips
- Start by matching lightness: too bright or too dark is the biggest error.
- Then match hue (red/green/blue direction), then fine-tune saturation.
- If you’re not sure, use the Color Converter to explore how HEX relates to RGB/HSL.
FAQ
- What is a HEX guess game?
- A HEX guess game shows you a color and asks you to type the 6-digit HEX code you think matches it (like #33aaff).
- How do you score it?
- Scoring is based on perceptual similarity using an OKLab-based distance (ΔE-like). Smaller differences score higher.
- Is it a professional color accuracy test?
- No. It’s for entertainment and learning. Displays and lighting affect perceived color.
Entertainment only. Not a medical or professional assessment.