# #4fca12

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

## Values

- Hex: `#4fca12`
- RGB: rgb(79, 202, 18)
- HSL: hsl(100, 84%, 43%)
- OKLCH: oklch(0.74 0.228 138.8)
- Relative luminance: 0.4395
- Nearest named color: Lime Green (#32cd32, Δ 1.603) — https://brandsweets.com/colors/limegreen
- Moods: vivid
- Page: https://brandsweets.com/colors/4fca12

## Tints & shades

- Tints (toward white): #5ae614, #69ec27, #7cef43, #8df15b, #a0f377, #b1f58e, #c4f8ab, #d5fac2, #e8fcde, #f8fef6
- Shades (toward black): #48b710, #40a40e, #39910d, #327f0b, #2c710a, #255e08, #1d4b07, #163805, #0f2603, #071302

## Harmonies

- Complementary: #8c12ca
- Analogous: #abca12, #12ca30
- Triadic: #124fca, #ca124f
- Split-complementary: #3012ca, #ca12ab
- Tetradic: #12abca, #8c12ca, #ca3012

## Colors that go with #4fca12

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

- **Blue** #0000ff [pool] — 4 real palettes, including Minecraft's brand system and Spotify's brand system put Blue beside #4fca12, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Spotify (https://brandsweets.com/colors/brands/spotify), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), 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 #4fca12: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Taupe** #483c32 [pool] — Taupe is paired with #4fca12 in 8 real palettes, including Minecraft's brand system and WhatsApp's brand system, as the lead colour. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #4fca12 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, pool: split] — Hot Pink is a split-complement of #4fca12: 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
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #4fca12 — 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 #4fca12 in 3 real palettes, including Learning App and Playground, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/darkorange
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #4fca12 in 3 real palettes, including Brilliant's brand system and MongoDB's brand system, as the accent. Seen in: Brilliant (https://brandsweets.com/colors/brands/brilliant-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 2.15:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #33830b (4.78:1); AA: background → #424242 (4.68:1); AAA: text → #276309 (7.3:1); AAA: background → #262626 (7.05:1)
- On black (#000000): 9.79:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Duolingo** — primary #58cc02 (Δ 0.934) — https://brandsweets.com/colors/brands/duolingo
- **Duolingo** — secondary #58cc02 (Δ 0.934) — 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/4fca12-a8bea2-694edf-1f2d21-f0f1e9?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: "#4fca12" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.