# #3feb00

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

## Values

- Hex: `#3feb00`
- RGB: rgb(63, 235, 0)
- HSL: hsl(104, 100%, 46%)
- OKLCH: oklch(0.821 0.268 140.7)
- Relative luminance: 0.6047
- Nearest named color: Becquerel (#4bec13, Δ 0.773) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/3feb00

## Tints & shades

- Tints (toward white): #48ff05, #5aff1f, #71ff3d, #84ff57, #96ff70, #a9ff8a, #bcffa3, #d2ffc2, #e5ffdb, #f8fff5
- Shades (toward black): #39d600, #34c200, #2da800, #279400, #228000, #1d6b00, #175700, #103d00, #0b2900, #051400

## Harmonies

- Complementary: #ac00eb
- Analogous: #b4eb00, #00eb37
- Triadic: #003feb, #eb003f
- Split-complementary: #3700eb, #eb00b4
- Tetradic: #00b4eb, #ac00eb, #eb3700

## Colors that go with #3feb00

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #3feb00 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #3feb00 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/violet
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #3feb00: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #3feb00: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Lilac** #c8a2c8 [harmony: split] — Lilac is a split-complement of #3feb00: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lilac
- **Red** #ff0000 [pool] — Red is paired with #3feb00 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #3feb00 in two real palettes: MongoDB's brand system and Brilliant's brand system, as the supporting colour. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #3feb00 in two real palettes: 7-Eleven's brand system and WhatsApp's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 1.6:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #238500 (4.74:1); AA: background → #575757 (4.51:1); AAA: text → #1b6600 (7.13:1); AAA: background → #383838 (7.31:1)
- On black (#000000): 13.09:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/3feb00-a6bea2-724edf-1f2d22-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: "#3feb00" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.