# #40d22d

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

## Values

- Hex: `#40d22d`
- RGB: rgb(64, 210, 45)
- HSL: hsl(113, 65%, 50%)
- OKLCH: oklch(0.758 0.232 141.6)
- Relative luminance: 0.4737
- Nearest named color: Lime Green (#32cd32, Δ 1.703) — https://brandsweets.com/colors/limegreen
- Moods: vivid
- Page: https://brandsweets.com/colors/40d22d

## Tints & shades

- Tints (toward white): #53d742, #66db57, #75df68, #89e37d, #9ce892, #afeca7, #c2f1bc, #d1f4cd, #e4f9e2, #f7fdf7
- Shades (toward black): #3abd28, #34ad25, #2e9720, #29871d, #237218, #1c5d14, #174c10, #11370c, #0c2608, #051104

## Harmonies

- Complementary: #bf2dd2
- Analogous: #93d22d, #2dd26c
- Triadic: #2d40d2, #d22d40
- Split-complementary: #6c2dd2, #d22d93
- Tetradic: #2d93d2, #bf2dd2, #d26c2d

## Colors that go with #40d22d

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 MongoDB's brand system put Blue beside #40d22d, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Taupe** #483c32 [pool] — Taupe is paired with #40d22d 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 #40d22d 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 #40d22d: 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
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #40d22d: 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 #40d22d 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 #40d22d — 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
- **Mustard Yellow** #ffdb58 [pool] — 3 real palettes, including Meadow and Citrus Grove put Mustard Yellow beside #40d22d, as the supporting colour. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard

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

- On white (#ffffff): 2:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #29871d (4.59:1); AA: background → #474747 (4.63:1); AAA: text → #1f6515 (7.17:1); AAA: background → #2b2b2b (7.06:1)
- On black (#000000): 10.47:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Duolingo** — primary #58cc02 (Δ 1.896) — https://brandsweets.com/colors/brands/duolingo
- **Duolingo** — secondary #58cc02 (Δ 1.896) — 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/40d22d-a2bea2-884edf-1f2d24-eef1e9?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: "#40d22d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.