# #4dd5d3

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

## Values

- Hex: `#4dd5d3`
- RGB: rgb(77, 213, 211)
- HSL: hsl(179, 62%, 57%)
- OKLCH: oklch(0.8 0.116 193.7)
- Relative luminance: 0.5387
- Nearest named color: mediumturquoise (#48d1cc, Δ 1.389) — https://brandsweets.com/colors/mediumturquoise
- Moods: vivid
- Page: https://brandsweets.com/colors/4dd5d3

## Tints & shades

- Tints (toward white): #5ed9d7, #6edddb, #7fe1df, #8fe5e3, #a4eae9, #b5eeed, #c5f1f1, #d6f5f5, #e6f9f9, #f7fdfd
- Shades (toward black): #39d0ce, #2dbebc, #28a9a7, #239593, #1e807e, #186766, #135352, #0f3e3d, #092525, #041110

## Harmonies

- Complementary: #d54d50
- Analogous: #4dd58f, #4d94d5
- Triadic: #d34dd5, #d5d34d
- Split-complementary: #d54d94, #d58f4d
- Tetradic: #8f4dd5, #d54d50, #94d54d

## Colors that go with #4dd5d3

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 #4dd5d3: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Canopy (https://brandsweets.com/palettes/cool#canopy), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #4dd5d3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. 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), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com). — https://brandsweets.com/colors/deepskyblue
- **Light Coral** #f08080 [harmony, pool: complementary] — Light Coral sits directly opposite #4dd5d3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Sentry (https://brandsweets.com/colors/brands/sentry-io). — https://brandsweets.com/colors/lightcoral
- **Blue** #0000ff [pool] — 4 real palettes, including Canva's brand system and Uber's brand system put Blue beside #4dd5d3, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Uber (https://brandsweets.com/colors/brands/uber-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #4dd5d3 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), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #4dd5d3: 5 real palettes, including Patreon's brand system and Opensea's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Opensea (https://brandsweets.com/colors/brands/opensea-io), Figma (https://brandsweets.com/colors/brands/figma), Bluesky Social (https://brandsweets.com/colors/brands/bsky-app). — https://brandsweets.com/colors/dodgerblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #4dd5d3 in 5 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), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), 1password (https://brandsweets.com/colors/brands/1password-com). — https://brandsweets.com/colors/royalblue
- **Slate Gray** #708090 [pool] — 5 real palettes, including Ledger Dark and Still Water put Slate Gray beside #4dd5d3, as the supporting colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), 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). — https://brandsweets.com/colors/slategray

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

- On white (#ffffff): 1.78:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1e807e (4.73:1); AA: background → #4f4f4f (4.59:1); AAA: text → #176362 (7.01:1); AAA: background → #333333 (7.08:1)
- On black (#000000): 11.77:1 — 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/4dd5d3-a2bbbe-d45996-1f272d-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: "#4dd5d3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.