# #81eb00

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

## Values

- Hex: `#81eb00`
- RGB: rgb(129, 235, 0)
- HSL: hsl(87, 100%, 46%)
- OKLCH: oklch(0.842 0.243 134.4)
- Relative luminance: 0.6408
- Nearest named color: Becquerel (#4bec13, Δ 3.654) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/81eb00

## Tints & shades

- Tints (toward white): #8fff05, #9aff1f, #a8ff3d, #b3ff57, #bfff70, #caff8a, #d6ffa3, #e3ffc2, #efffdb, #fafff5
- Shades (toward black): #76d600, #6bc200, #5da800, #519400, #468000, #3b6b00, #305700, #223d00, #162900, #0b1400

## Harmonies

- Complementary: #6a00eb
- Analogous: #ebdf00, #0ceb00
- Triadic: #0081eb, #eb0081
- Split-complementary: #000ceb, #df00eb
- Tetradic: #00ebdf, #6a00eb, #eb000c

## Colors that go with #81eb00

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 #81eb00 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Learning App (https://brandsweets.com/palettes/playful#learning-app), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #81eb00 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
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #81eb00: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Taupe** #483c32 [pool] — Taupe is paired with #81eb00 in 3 real palettes, including 7-Eleven's brand system and Acer's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Acer (https://brandsweets.com/colors/brands/acer-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #81eb00: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Robinhood's brand system put Blue beside #81eb00, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Lime Green** #32cd32 [pool] — Two real palettes: Monster Energy's brand system and Duolingo's brand system put Lime Green beside #81eb00, as the accent. Seen in: Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com), Duolingo (https://brandsweets.com/colors/brands/duolingo). — https://brandsweets.com/colors/limegreen
- **Red** #ff0000 [pool] — Red is paired with #81eb00 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 1.52:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #498500 (4.53:1); AA: background → #595959 (4.61:1); AAA: text → #356100 (7.34:1); AAA: background → #3d3d3d (7.15:1)
- On black (#000000): 13.82:1 — 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/81eb00-aebea2-4e53df-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: "#81eb00" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.