# #81c1bf

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

## Values

- Hex: `#81c1bf`
- RGB: rgb(129, 193, 191)
- HSL: hsl(178, 34%, 63%)
- OKLCH: oklch(0.767 0.065 193.4)
- Relative luminance: 0.4657
- Nearest named color: Cyantific (#77c9c2, Δ 2.215) — https://brandsweets.com/colors/cyantific
- Moods: muted
- Page: https://brandsweets.com/colors/81c1bf

## Tints & shades

- Tints (toward white): #8ec7c6, #98cdcb, #a6d3d2, #b0d8d7, #bedfde, #c8e4e3, #d6ebea, #e0f0ef, #eef7f6, #f8fcfc
- Shades (toward black): #6cb7b4, #58adaa, #4c9a97, #428583, #397472, #2f605e, #254b4a, #1b3736, #112222, #070e0d

## Harmonies

- Complementary: #c18183
- Analogous: #81c19f, #81a3c1
- Triadic: #bf81c1, #c1bf81
- Split-complementary: #c181a3, #c19f81
- Tetradic: #9f81c1, #c18183, #a3c181

## Colors that go with #81c1bf

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 #81c1bf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Coastal (https://brandsweets.com/palettes/cool#coastal), Canopy (https://brandsweets.com/palettes/cool#canopy), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue). — https://brandsweets.com/colors/charcoal
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #81c1bf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/darksalmon
- **Blue** #0000ff [pool] — 5 real palettes, including Uber's brand system and Canva's brand system put Blue beside #81c1bf, as the accent. Seen in: Uber (https://brandsweets.com/colors/brands/uber-com), Canva (https://brandsweets.com/colors/brands/canva-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #81c1bf: 5 real palettes, including Clean Beauty and Riverbed, as the accent. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #81c1bf in 4 real palettes, including Tiffany & Co.'s brand system and Riot Games's brand system, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Cartier (https://brandsweets.com/colors/brands/cartier-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #81c1bf in 5 real palettes, including Warp's brand system and Forest Floor, as the accent. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal). — https://brandsweets.com/colors/darkolivegreen
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #81c1bf: 4 real palettes, including Max's brand system and Calm's brand system, as the supporting colour. Seen in: Max (https://brandsweets.com/colors/brands/max-com), Calm (https://brandsweets.com/colors/brands/calm-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #81c1bf: 5 real palettes, including Open House and UEFA's brand system, as the lead colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), UEFA (https://brandsweets.com/colors/brands/uefa-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 2.04:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3e7e7c (4.69:1); AA: background → #474747 (4.56:1); AAA: text → #2f605e (7.11:1); AAA: background → #292929 (7.15:1)
- On black (#000000): 10.31:1 — 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/81c1bf-a2bcbe-d45999-1f282d-e9f1ed?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: "#81c1bf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.