# #81caa1

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

## Values

- Hex: `#81caa1`
- RGB: rgb(129, 202, 161)
- HSL: hsl(146, 41%, 65%)
- OKLCH: oklch(0.78 0.094 158.6)
- Relative luminance: 0.4948
- Nearest named color: Crystal Gem (#79d0a7, Δ 1.631) — https://brandsweets.com/colors/crystal-gem
- Moods: neutral
- Page: https://brandsweets.com/colors/81caa1

## Tints & shades

- Tints (toward white): #8ccfa9, #9ad5b4, #a5d9bc, #b0dec4, #bee4cf, #c9e8d7, #d4eddf, #dff1e7, #edf7f2, #f8fcfa
- Shades (toward black): #6cc191, #56b881, #47a971, #3e9363, #357e54, #2a6543, #214f35, #183a27, #0f2418, #060e0a

## Harmonies

- Complementary: #ca81ab
- Analogous: #86ca81, #81cac5
- Triadic: #a181ca, #caa181
- Split-complementary: #c581ca, #ca8186
- Tetradic: #8186ca, #ca81ab, #cac581

## Colors that go with #81caa1

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 text near-black for #81caa1: softer than #000 and cool enough to feel like part of the same palette. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Docker (https://brandsweets.com/colors/brands/docker-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Harbour (https://brandsweets.com/palettes/cool#harbour). — https://brandsweets.com/colors/charcoal
- **Plum** #dda0dd [harmony, pool: complementary] — Plum sits directly opposite #81caa1 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), Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/plum
- **Blue** #0000ff [pool] — 6 real palettes, including Unity's brand system and Uber's brand system put Blue beside #81caa1, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Uber (https://brandsweets.com/colors/brands/uber-com), Canva (https://brandsweets.com/colors/brands/canva-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #81caa1: 4 real palettes, including Clean Beauty and Desert Road, as the accent. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Bramble (https://brandsweets.com/palettes/muted#bramble), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #81caa1 in 6 real palettes, including Tiffany & Co.'s brand system and Frost & Ember, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #81caa1 in 4 real palettes, including Forest Floor and Undergrowth, as the supporting colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com). — https://brandsweets.com/colors/darkolivegreen
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #81caa1: 4 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run), Max (https://brandsweets.com/colors/brands/max-com). — https://brandsweets.com/colors/deepskyblue
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #81caa1 in 4 real palettes, including Canopy and Neon's brand system, as the lead colour. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Neon (https://brandsweets.com/colors/brands/neon-tech), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/hunter-green

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

- On white (#ffffff): 1.93:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #368157 (4.74:1); AA: background → #4a4a4a (4.6:1); AAA: text → #296141 (7.29:1); AAA: background → #2e2e2e (7.05:1)
- On black (#000000): 10.9:1 — 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/81caa1-a2beb1-ce59d4-1f2d2b-eaf1e9?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: "#81caa1" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.