# #81d37e

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

## Values

- Hex: `#81d37e`
- RGB: rgb(129, 211, 126)
- HSL: hsl(118, 49%, 66%)
- OKLCH: oklch(0.794 0.142 143.3)
- Relative luminance: 0.5276
- Nearest named color: Fluorescence (#89d178, Δ 0.914) — https://brandsweets.com/colors/fluorescence
- Moods: neutral
- Page: https://brandsweets.com/colors/81d37e

## Tints & shades

- Tints (toward white): #8cd789, #97db95, #a6e0a4, #b1e4af, #bce8bb, #c7ebc6, #d2efd1, #e1f5e1, #ecf8ec, #f8fcf7
- Shades (toward black): #6acb67, #54c350, #41b33d, #399c35, #30852e, #286e26, #20571e, #163d15, #0e260d, #060f05

## Harmonies

- Complementary: #d07ed3
- Analogous: #abd37e, #7ed3a5
- Triadic: #7e81d3, #d37e81
- Split-complementary: #a57ed3, #d37eab
- Tetradic: #7eabd3, #d07ed3, #d3a57e

## Colors that go with #81d37e

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

- **Plum** #dda0dd [harmony, pool: complementary] — Plum sits directly opposite #81d37e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum
- **Blue** #0000ff [pool] — 4 real palettes, including Minecraft's brand system and Unity's brand system put Blue beside #81d37e, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #81d37e: 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), Canopy (https://brandsweets.com/palettes/cool#canopy), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #81d37e in 4 real palettes, including Wise's brand system and Tiffany & Co.'s brand system, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #81d37e: 4 real palettes, including Remix's brand system and Prime Video's brand system, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Learning App (https://brandsweets.com/palettes/playful#learning-app), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Citrus Grove and Fresh Juice put Mustard Yellow beside #81d37e, as the accent. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Meadow (https://brandsweets.com/palettes/light#meadow), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #81d37e in 4 real palettes, including Docker's brand system and Brilliant's brand system, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #81d37e in 18 real palettes, including Citrus Grove and WhatsApp's brand system, as the text colour against it. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Acer (https://brandsweets.com/colors/brands/acer-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 1.82:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #30852e (4.65:1); AA: background → #4f4f4f (4.51:1); AAA: text → #246322 (7.28:1); AAA: background → #303030 (7.26:1)
- On black (#000000): 11.55:1 — 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/81d37e-a2bea4-944edf-1f2d25-edf1e9?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: "#81d37e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.