# #51d2bf

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

## Values

- Hex: `#51d2bf`
- RGB: rgb(81, 210, 191)
- HSL: hsl(171, 59%, 57%)
- OKLCH: oklch(0.788 0.116 181.8)
- Relative luminance: 0.516
- Nearest named color: mediumturquoise (#48d1cc, Δ 1.982) — https://brandsweets.com/colors/mediumturquoise
- Moods: neutral
- Page: https://brandsweets.com/colors/51d2bf

## Tints & shades

- Tints (toward white): #61d6c5, #71dacb, #81dfd1, #92e3d7, #a6e8de, #b6ece4, #c6f0ea, #d6f5f0, #e7f9f6, #f7fdfc
- Shades (toward black): #3ccdb7, #30bba6, #2ba694, #269282, #207e70, #1a655a, #155148, #103d36, #092420, #04100e

## Harmonies

- Complementary: #d25164
- Analogous: #51d27e, #51a5d2
- Triadic: #bf51d2, #d2bf51
- Split-complementary: #d251a5, #d27e51
- Tetradic: #7e51d2, #d25164, #a5d251

## Colors that go with #51d2bf

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 #51d2bf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Canopy (https://brandsweets.com/palettes/cool#canopy), UEFA (https://brandsweets.com/colors/brands/uefa-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Canva's brand system and Uber's brand system put Blue beside #51d2bf, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Uber (https://brandsweets.com/colors/brands/uber-com), Unity (https://brandsweets.com/colors/brands/unity-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #51d2bf 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), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #51d2bf: 6 real palettes, including Astro's brand system and Salesforce's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Slate Gray** #708090 [pool] — 5 real palettes, including Ledger Dark and Still Water put Slate Gray beside #51d2bf, as the supporting colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Still Water (https://brandsweets.com/palettes/cool#still-water), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #51d2bf in 19 real palettes, including Crayon Box and Mint Chip, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Resort (https://brandsweets.com/palettes/light#resort). — https://brandsweets.com/colors/taupe
- **Wheat** #f5deb3 [pool] — Designers have shipped Wheat with #51d2bf: 5 real palettes, including Mint Chip and Oatly's brand system, as the accent. Seen in: Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Oatly (https://brandsweets.com/colors/brands/oatly-com), Resort (https://brandsweets.com/palettes/light#resort), Still Water (https://brandsweets.com/palettes/cool#still-water). — https://brandsweets.com/colors/wheat
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #51d2bf 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/lightcoral

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

- On white (#ffffff): 1.85:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #218273 (4.66:1); AA: background → #4d4d4d (4.56:1); AAA: text → #196156 (7.28:1); AAA: background → #303030 (7.11:1)
- On black (#000000): 11.32:1 — 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/51d2bf-a2bebd-d459a7-1f292d-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: "#51d2bf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.