# #81cc66

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

## Values

- Hex: `#81cc66`
- RGB: rgb(129, 204, 102)
- HSL: hsl(104, 50%, 60%)
- OKLCH: oklch(0.773 0.156 138)
- Relative luminance: 0.4881
- Nearest named color: Emerald Rain (#80c872, Δ 1.996) — https://brandsweets.com/colors/emerald-rain
- Moods: neutral
- Page: https://brandsweets.com/colors/81cc66

## Tints & shades

- Tints (toward white): #8ed175, #9ad685, #a4da90, #b0df9f, #bde4af, #cae9be, #d6eecd, #e0f2d9, #ecf7e8, #f9fcf7
- Shades (toward black): #6ec44f, #60bb3e, #54a437, #4a9130, #3f7a29, #336321, #29501b, #1d3913, #14260d, #080f05

## Harmonies

- Complementary: #b166cc
- Analogous: #b4cc66, #66cc7e
- Triadic: #6681cc, #cc6681
- Split-complementary: #7e66cc, #cc66b4
- Tetradic: #66b4cc, #b166cc, #cc7e66

## Colors that go with #81cc66

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

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #81cc66: 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), Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Plum** #dda0dd [harmony, pool: complementary] — Plum sits directly opposite #81cc66 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 #81cc66, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #81cc66 in 4 real palettes, including 7-Eleven's brand system and Undergrowth, as the supporting colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #81cc66 in 5 real palettes, including Brilliant's brand system and Docker's brand system, as the accent. Seen in: Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Docker (https://brandsweets.com/colors/brands/docker-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org). — https://brandsweets.com/colors/royalblue
- **Slate Gray** #708090 [pool] — 4 real palettes, including Ledger Dark and Indigo SaaS put Slate Gray beside #81cc66, as the supporting colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #81cc66 in 15 real palettes, including Citrus Grove and Acer's brand system, as the text colour against it. Seen in: Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), Acer (https://brandsweets.com/colors/brands/acer-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/taupe
- **Lilac** #c8a2c8 [harmony, pool: split] — Lilac is a split-complement of #81cc66: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe). — https://brandsweets.com/colors/lilac

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

- On white (#ffffff): 1.95:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #42822b (4.71:1); AA: background → #4a4a4a (4.54:1); AAA: text → #336321 (7.12:1); AAA: background → #2b2b2b (7.26:1)
- On black (#000000): 10.76:1 — 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/81cc66-a6bea2-724edf-1f2d22-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: "#81cc66" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.