# #40d51a

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

## Values

- Hex: `#40d51a`
- RGB: rgb(64, 213, 26)
- HSL: hsl(108, 78%, 47%)
- OKLCH: oklch(0.765 0.242 140.7)
- Relative luminance: 0.4875
- Nearest named color: Candy Green (#33cc00, Δ 2.701) — https://brandsweets.com/colors/candy-green
- Moods: vivid
- Page: https://brandsweets.com/colors/40d51a

## Tints & shades

- Tints (toward white): #4be425, #5ee73c, #71ea53, #83ec69, #9af084, #adf39b, #bff5b2, #d2f8c9, #e5fbdf, #f8fef6
- Shades (toward black): #3ac318, #34ac15, #2e9a13, #298811, #23760f, #1c5f0c, #174d0a, #123b07, #0b2404, #051202

## Harmonies

- Complementary: #b01ad5
- Analogous: #9dd51a, #1ad552
- Triadic: #1a40d5, #d51a40
- Split-complementary: #521ad5, #d51a9d
- Tetradic: #1a9dd5, #b01ad5, #d5521a

## Colors that go with #40d51a

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 #40d51a in 8 real palettes, including WhatsApp's brand system and Minecraft's brand system, as the supporting colour. Seen in: WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Acer (https://brandsweets.com/colors/brands/acer-com). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #40d51a 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 #40d51a: 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
- **Blue** #0000ff [pool] — 3 real palettes, including MongoDB's brand system and Minecraft's brand system put Blue beside #40d51a, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #40d51a: 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). — https://brandsweets.com/colors/charcoal
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #40d51a 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
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #40d51a — 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). — https://brandsweets.com/colors/deepskyblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #40d51a 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): 1.95:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #298811 (4.54:1); AA: background → #4a4a4a (4.54:1); AAA: text → #1e640c (7.28:1); AAA: background → #2b2b2b (7.25:1)
- On black (#000000): 10.75:1 — 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/40d51a-a4bea2-7c4edf-1f2d23-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: "#40d51a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.