# #40d4bb

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

## Values

- Hex: `#40d4bb`
- RGB: rgb(64, 212, 187)
- HSL: hsl(170, 63%, 54%)
- OKLCH: oklch(0.787 0.128 179)
- Relative luminance: 0.5176
- Nearest named color: mediumturquoise (#48d1cc, Δ 2.916) — https://brandsweets.com/colors/mediumturquoise
- Moods: vivid
- Page: https://brandsweets.com/colors/40d4bb

## Tints & shades

- Tints (toward white): #50d7c1, #65dcc8, #76e0ce, #8be5d6, #9be8dc, #acece1, #c1f1e9, #d1f5ef, #e6f9f6, #f7fdfc
- Shades (toward black): #2eccb1, #2ab79f, #25a28d, #208d7b, #1b7969, #176457, #124f45, #0d3a33, #082521, #04110e

## Harmonies

- Complementary: #d44058
- Analogous: #40d471, #40a2d4
- Triadic: #bb40d4, #d4bb40
- Split-complementary: #d440a2, #d47140
- Tetradic: #7140d4, #d44058, #a2d440

## Colors that go with #40d4bb

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 #40d4bb: 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
- **Crimson** #dc143c [pool] — Crimson is paired with #40d4bb 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 #40d4bb: 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), Salesforce (https://brandsweets.com/colors/brands/salesforce-com). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #40d4bb in 18 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), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/taupe
- **Wheat** #f5deb3 [pool] — Designers have shipped Wheat with #40d4bb: 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
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #40d4bb 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/hotpink
- **Blue** #0000ff [pool] — 3 real palettes, including Canva's brand system and Unity's brand system put Blue beside #40d4bb, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Unity (https://brandsweets.com/colors/brands/unity-com), Uber (https://brandsweets.com/colors/brands/uber-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 3 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #40d4bb, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink

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

- On white (#ffffff): 1.85:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1e8574 (4.5:1); AA: background → #4d4d4d (4.57:1); AAA: text → #176457 (7.01:1); AAA: background → #303030 (7.14:1)
- On black (#000000): 11.35:1 — 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/40d4bb-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: "#40d4bb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.