# #3fb913

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

## Values

- Hex: `#3fb913`
- RGB: rgb(63, 185, 19)
- HSL: hsl(104, 81%, 40%)
- OKLCH: oklch(0.69 0.216 139.9)
- Relative luminance: 0.358
- Nearest named color: Frog (#58bc08, Δ 2.05) — https://brandsweets.com/colors/frog
- Moods: vivid
- Page: https://brandsweets.com/colors/3fb913

## Tints & shades

- Tints (toward white): #49d416, #56e821, #68ea39, #7ded54, #92f070, #a7f38c, #bcf6a7, #cef8be, #e3fbda, #f8fef6
- Shades (toward black): #39a611, #349810, #2e860e, #29780d, #23660b, #1d5309, #184507, #113305, #0d2504, #061202

## Harmonies

- Complementary: #8d13b9
- Analogous: #92b913, #13b93a
- Triadic: #133fb9, #b9133f
- Split-complementary: #3a13b9, #b91392
- Tetradic: #1392b9, #8d13b9, #b93a13

## Colors that go with #3fb913

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

- **Taupe** #483c32 [pool] — Taupe is paired with #3fb913 in 8 real palettes, including Obsidian's brand system and Meadow, as the text colour against it. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Meadow (https://brandsweets.com/palettes/light#meadow), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Acer (https://brandsweets.com/colors/brands/acer-com). — https://brandsweets.com/colors/taupe
- **Orchid** #da70d6 [harmony: complementary] — Orchid sits directly opposite #3fb913 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/orchid
- **Hot Pink** #ff69b4 [harmony, pool: split] — Hot Pink is a split-complement of #3fb913: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Medium Purple** #9370db [harmony, pool: split] — Medium Purple is a split-complement of #3fb913: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/mediumpurple
- **Blue** #0000ff [pool] — 3 real palettes, including Spotify's brand system and Minecraft's brand system put Blue beside #3fb913, as the accent. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #3fb913: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #3fb913 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #3fb913 in 3 real palettes, including Playground and Learning App, as the lead colour. Seen in: Playground (https://brandsweets.com/palettes/bold#playground), Learning App (https://brandsweets.com/palettes/playful#learning-app), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange

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

- On white (#ffffff): 2.57:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2e860e (4.63:1); AA: background → #383838 (4.56:1); AAA: text → #23660b (7.05:1); AAA: background → #141414 (7.16:1)
- On black (#000000): 8.16:1 — 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/3fb913-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: "#3fb913" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.