# #3fd100

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#3fd100`
- RGB: rgb(63, 209, 0)
- HSL: hsl(102, 100%, 41%)
- OKLCH: oklch(0.753 0.243 140.2)
- Relative luminance: 0.4666
- Nearest named color: Candy Green (#33cc00, Δ 1.611) — https://brandsweets.com/colors/candy-green
- Moods: vivid
- Page: https://brandsweets.com/colors/3fd100

## Tints & shades

- Tints (toward white): #48f000, #54ff0a, #69ff29, #7eff47, #94ff66, #a6ff80, #bbff9e, #d1ffbd, #e2ffd6, #f8fff5
- Shades (toward black): #39bd00, #34ad00, #2e9900, #288500, #237500, #1d6100, #174d00, #113800, #0c2900, #061400

## Harmonies

- Complementary: #9200d1
- Analogous: #a7d100, #00d12a
- Triadic: #003fd1, #d1003f
- Split-complementary: #2a00d1, #d100a7
- Tetradic: #00a7d1, #9200d1, #d12a00

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 2.03:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #288500 (4.72:1); AA: background → #474747 (4.57:1); AAA: text → #1f6600 (7.1:1); AAA: background → #292929 (7.16:1)
- On black (#000000): 10.33:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Duolingo** — primary #58cc02 (Δ 1.871) — https://brandsweets.com/colors/brands/duolingo
- **Duolingo** — secondary #58cc02 (Δ 1.871) — https://brandsweets.com/colors/brands/duolingo

## Curated palettes containing it

- **Learning App** (playful, vivid, friendly) — #58cc02, #1cb0f6, #ff9600, #ffffff, #1c1c1c — Green, blue and orange at full saturation: the gamified-learning look, where every color is a reward. — tool: https://brandsweets.com/palettes/new/58cc02-1cb0f6-ff9600-ffffff-1c1c1c — collection: https://brandsweets.com/palettes/playful

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/3fd100-a7bea2-6e4edf-1f2d21-eff1e9?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#3fd100" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.