# #55d0dd

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#55d0dd`
- RGB: rgb(85, 208, 221)
- HSL: hsl(186, 67%, 60%)
- OKLCH: oklch(0.794 0.109 204.9)
- Relative luminance: 0.5226
- Nearest named color: mediumturquoise (#48d1cc, Δ 2.8) — https://brandsweets.com/colors/mediumturquoise
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/55d0dd

## Tints & shades

- Tints (toward white): #66d4e1, #77d9e4, #84dde7, #95e1ea, #a6e6ed, #b7ebf1, #c8f0f4, #d4f3f7, #e5f8fa, #f6fdfd
- Shades (toward black): #3bc9d8, #29c0d1, #24a8b7, #2095a2, #1b7d88, #16666f, #125259, #0d3b40, #08272b, #031011

## Harmonies

- Complementary: #dd6255
- Analogous: #55dda7, #558bdd
- Triadic: #dd55d0, #d0dd55
- Split-complementary: #dd558b, #dda755
- Tetradic: #a755dd, #dd6255, #8bdd55

## Colors that go with #55d0dd

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 #55d0dd: 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), Coastal (https://brandsweets.com/palettes/cool#coastal), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Light Coral** #f08080 [harmony, pool: complementary] — Light Coral sits directly opposite #55d0dd 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
- **Crimson** #dc143c [pool] — Crimson is paired with #55d0dd 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 #55d0dd: 4 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), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/dodgerblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #55d0dd: 5 real palettes, including Audible's brand system and Steam's brand system, as the supporting colour. Seen in: Audible (https://brandsweets.com/colors/brands/audible-com), Steam (https://brandsweets.com/colors/brands/steampowered-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Crypto.com (https://brandsweets.com/colors/brands/crypto-com). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #55d0dd in 6 real palettes, including Telehealth and 1password's brand system, as the lead colour. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), 1password (https://brandsweets.com/colors/brands/1password-com), Docker (https://brandsweets.com/colors/brands/docker-com), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Slate Gray** #708090 [pool] — 5 real palettes, including Still Water and Dusty Blue put Slate Gray beside #55d0dd, as the lead colour. Seen in: Still Water (https://brandsweets.com/palettes/cool#still-water), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe). — https://brandsweets.com/colors/slategray
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #55d0dd: 4 real palettes, including Glacier and Deep Water, as the lead colour. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 1.83:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1c818d (4.59:1); AA: background → #4d4d4d (4.61:1); AAA: text → #15626a (7.03:1); AAA: background → #303030 (7.2:1)
- On black (#000000): 11.45:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Mattel** — accent #6ad1e2 (Δ 1.788) — https://brandsweets.com/colors/brands/mattel-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/55d0dd-a2b8be-df4e86-1f262d-e9f1ee?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: "#55d0dd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.