# #81da91

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

## Values

- Hex: `#81da91`
- RGB: rgb(129, 218, 145)
- HSL: hsl(131, 55%, 68%)
- OKLCH: oklch(0.814 0.134 148.6)
- Relative luminance: 0.5685
- Nearest named color: Enchanted Emerald (#7ed89a, Δ 1.436) — https://brandsweets.com/colors/enchanted-emerald
- Moods: neutral
- Page: https://brandsweets.com/colors/81da91

## Tints & shades

- Tints (toward white): #8cde9b, #98e1a6, #a4e5b0, #b0e8ba, #bcebc5, #c8efcf, #d4f2d9, #dff6e3, #ebf9ee, #f7fdf8
- Shades (toward black): #69d37c, #4dcb64, #38c251, #30a646, #298e3c, #227732, #1a5b26, #14431c, #0b2811, #051007

## Harmonies

- Complementary: #da81ca
- Analogous: #9dda81, #81dabe
- Triadic: #9181da, #da9181
- Split-complementary: #be81da, #da819d
- Tetradic: #819dda, #da81ca, #dabe81

## Colors that go with #81da91

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 #81da91, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Unity (https://brandsweets.com/colors/brands/unity-com), Uber (https://brandsweets.com/colors/brands/uber-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #81da91: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Docker (https://brandsweets.com/colors/brands/docker-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #81da91 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), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Fresh Juice and Citrus Grove put Mustard Yellow beside #81da91, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove), 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 #81da91 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 #81da91 in 19 real palettes, including Rain Garden and 7-Eleven's brand system, as the text colour against it. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Blossom (https://brandsweets.com/palettes/light#blossom), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #81da91 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 Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #81da91 in 3 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). — https://brandsweets.com/colors/darkolivegreen

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

- On white (#ffffff): 1.7:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #278638 (4.61:1); AA: background → #525252 (4.6:1); AAA: text → #1d632a (7.32:1); AAA: background → #363636 (7.12:1)
- On black (#000000): 12.37:1 — 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/81da91-a2beaa-b34edf-1f2d28-ecf1e9?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: "#81da91" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.