# #81dc09

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

## Values

- Hex: `#81dc09`
- RGB: rgb(129, 220, 9)
- HSL: hsl(86, 92%, 45%)
- OKLCH: oklch(0.806 0.226 133.1)
- Relative luminance: 0.5587
- Nearest named color: Alarming Slime (#2ce335, Δ 4.956) — https://brandsweets.com/colors/alarming-slime
- Moods: vivid
- Page: https://brandsweets.com/colors/81dc09

## Tints & shades

- Tints (toward white): #8ff50a, #9df628, #a8f740, #b3f859, #c0f976, #ccfa8e, #d7fba7, #e2fcbf, #effedd, #fbfff5
- Shades (toward black): #75c908, #6ab508, #5ea207, #538e06, #487a05, #396204, #2e4e03, #223b02, #172702, #0b1401

## Harmonies

- Complementary: #6509dc
- Analogous: #dcce09, #17dc09
- Triadic: #0981dc, #dc0981
- Split-complementary: #0917dc, #ce09dc
- Tetradic: #09dcce, #6509dc, #dc0917

## Colors that go with #81dc09

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

- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #81dc09 — 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), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #81dc09 in 7 real palettes, including Acer's brand system and 7-Eleven's brand system, as the text colour against it. Seen in: Acer (https://brandsweets.com/colors/brands/acer-com), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #81dc09 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
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #81dc09 in 3 real palettes, including Learning App and Citrus Grove, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Light Coral** #f08080 [harmony, pool: triadic] — Light Coral completes a triad with #81dc09 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/lightcoral
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #81dc09: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Emerald Green** #50c878 [harmony, pool: analogous] — Emerald Green is #81dc09's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Peloton (https://brandsweets.com/colors/brands/peloton-com). — https://brandsweets.com/colors/emerald-green
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #81dc09: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 1.72:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4d8406 (4.55:1); AA: background → #525252 (4.53:1); AAA: text → #396204 (7.18:1); AAA: background → #363636 (7.01:1)
- On black (#000000): 12.17:1 — 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/81dc09-afbea2-4e56df-212d1f-f1f1e9?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: "#81dc09" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.