# #81d9cb

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

## Values

- Hex: `#81d9cb`
- RGB: rgb(129, 217, 203)
- HSL: hsl(170, 54%, 68%)
- OKLCH: oklch(0.826 0.088 182.8)
- Relative luminance: 0.586
- Nearest named color: Bambino (#8edacc, Δ 1.332) — https://brandsweets.com/colors/bambino
- Moods: neutral
- Page: https://brandsweets.com/colors/81d9cb

## Tints & shades

- Tints (toward white): #8dddd0, #99e1d5, #a5e4d9, #b0e8de, #bcebe3, #c8efe8, #d4f2ed, #e0f6f2, #ebf9f7, #f7fdfc
- Shades (toward black): #6ad2c1, #4ecab6, #39c0aa, #31a592, #2a8d7d, #237668, #1b5a50, #14433b, #0c2723, #05100e

## Harmonies

- Complementary: #d98190
- Analogous: #81d99f, #81bcd9
- Triadic: #cb81d9, #d9cb81
- Split-complementary: #d981bc, #d99f81
- Tetradic: #9f81d9, #d98190, #bcd981

## Colors that go with #81d9cb

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 #81d9cb: 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 #81d9cb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Crypto.com (https://brandsweets.com/colors/brands/crypto-com). — https://brandsweets.com/colors/lilac
- **Crimson** #dc143c [pool] — Crimson is paired with #81d9cb 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 #81d9cb: 7 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 Blue Mono put Midnight Blue beside #81d9cb, as the text colour against it. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Allbirds (https://brandsweets.com/colors/brands/allbirds-com). — https://brandsweets.com/colors/midnightblue
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #81d9cb: 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), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Scale AI (https://brandsweets.com/colors/brands/scale-com). — https://brandsweets.com/colors/sage-green
- **Slate Gray** #708090 [pool] — 9 real palettes, including Still Water and Dusty Blue put Slate Gray beside #81d9cb, as the lead colour. Seen in: Still Water (https://brandsweets.com/palettes/cool#still-water), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #81d9cb in 24 real palettes, including Mint Chip and Blossom, as the text colour against it. Seen in: Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Blossom (https://brandsweets.com/palettes/light#blossom), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 1.65:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #278272 (4.64:1); AA: background → #545454 (4.59:1); AAA: text → #1d6257 (7.15:1); AAA: background → #383838 (7.1:1)
- On black (#000000): 12.72:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Tiffany & Co.** — accent #81d8d0 (Δ 0.845) — 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/81d9cb-a2bebd-d459a9-1f292d-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: "#81d9cb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.