# #81d5ca

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

## Values

- Hex: `#81d5ca`
- RGB: rgb(129, 213, 202)
- HSL: hsl(172, 50%, 67%)
- OKLCH: oklch(0.816 0.084 185.1)
- Relative luminance: 0.5652
- Nearest named color: Cabbage (#87d7be, Δ 1.979) — https://brandsweets.com/colors/cabbage
- Moods: neutral
- Page: https://brandsweets.com/colors/81d5ca

## Tints & shades

- Tints (toward white): #8cd9cf, #98ddd3, #a3e0d8, #afe4dd, #bee9e4, #c9ede8, #d5f1ed, #e0f5f2, #ecf9f7, #f7fcfc
- Shades (toward black): #6acdc0, #4fc4b5, #3db8a7, #36a192, #2e8a7d, #256f65, #1d5850, #16413b, #0d2623, #050f0e

## Harmonies

- Complementary: #d5818c
- Analogous: #81d5a0, #81b6d5
- Triadic: #ca81d5, #d5ca81
- Split-complementary: #d581b6, #d5a081
- Tetradic: #a081d5, #d5818c, #b6d581

## Colors that go with #81d5ca

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 #81d5ca: softer than #000 and cool enough to feel like part of the same palette. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Coastal (https://brandsweets.com/palettes/cool#coastal), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #81d5ca on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Crypto.com (https://brandsweets.com/colors/brands/crypto-com), First Snow (https://brandsweets.com/palettes/cool#first-snow). — https://brandsweets.com/colors/lilac
- **Crimson** #dc143c [pool] — Crimson is paired with #81d5ca in 5 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), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #81d5ca: 5 real palettes, including Salesforce's brand system and Astro's brand system, as the lead colour. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Astro (https://brandsweets.com/colors/brands/astro-build), Max (https://brandsweets.com/colors/brands/max-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai). — https://brandsweets.com/colors/deepskyblue
- **Midnight Blue** #191970 [pool] — 4 real palettes, including First Snow and Telehealth put Midnight Blue beside #81d5ca, as the text colour against it. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Allbirds (https://brandsweets.com/colors/brands/allbirds-com). — https://brandsweets.com/colors/midnightblue
- **Plum** #dda0dd [harmony, pool: split] — Plum is a split-complement of #81d5ca: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom), Netlify (https://brandsweets.com/colors/brands/netlify-com), Mercury (https://brandsweets.com/colors/brands/mercury-com). — https://brandsweets.com/colors/plum
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #81d5ca in 4 real palettes, including Docker's brand system and Telehealth, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), 1password (https://brandsweets.com/colors/brands/1password-com). — https://brandsweets.com/colors/royalblue
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #81d5ca: 4 real palettes, including Stone and Oatmeal, as the supporting colour. Seen in: Stone (https://brandsweets.com/palettes/neutral#stone), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Scale AI (https://brandsweets.com/colors/brands/scale-com), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch). — https://brandsweets.com/colors/sage-green

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

- On white (#ffffff): 1.71:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2b8276 (4.61:1); AA: background → #525252 (4.58:1); AAA: text → #206057 (7.31:1); AAA: background → #363636 (7.08:1)
- On black (#000000): 12.3:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Tiffany & Co.** — accent #81d8d0 (Δ 0.99) — https://brandsweets.com/colors/brands/tiffany-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/81d5ca-a2bebe-d459a5-1f292d-e9f1ec?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: "#81d5ca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.