# #18cdcd

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

## Values

- Hex: `#18cdcd`
- RGB: rgb(24, 205, 205)
- HSL: hsl(180, 79%, 45%)
- OKLCH: oklch(0.769 0.129 194.8)
- Relative luminance: 0.4826
- Nearest named color: darkturquoise (#00ced1, Δ 0.566) — https://brandsweets.com/colors/darkturquoise
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/18cdcd

## Tints & shades

- Tints (toward white): #1be4e4, #36e7e7, #4deaea, #64eded, #7ff0f0, #96f3f3, #adf5f5, #c4f8f8, #dffbfb, #f6fefe
- Shades (toward black): #16bbbb, #14a9a9, #129797, #108484, #0d7272, #0b5b5b, #094949, #063737, #042525, #021212

## Harmonies

- Complementary: #cd1818
- Analogous: #18cd73, #1873cd
- Triadic: #cd18cd, #cdcd18
- Split-complementary: #cd1873, #cd7318
- Tetradic: #7318cd, #cd1818, #73cd18

## Colors that go with #18cdcd

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 #18cdcd: 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), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Canva's brand system and Warp's brand system put Blue beside #18cdcd, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Uber (https://brandsweets.com/colors/brands/uber-com), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #18cdcd in 4 real palettes, including Riot Games's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-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
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #18cdcd: 5 real palettes, including Patreon's brand system and Figma's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Figma (https://brandsweets.com/colors/brands/figma), Opensea (https://brandsweets.com/colors/brands/opensea-io), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/dodgerblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #18cdcd in 7 real palettes, including Docker's brand system and Khan Academy's brand system, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Confluent (https://brandsweets.com/colors/brands/confluent-io), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #18cdcd: 4 real palettes, including Deep Water and Glacier, as the supporting colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Glacier (https://brandsweets.com/palettes/cool#glacier), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/steelblue
- **Taupe** #483c32 [pool] — Taupe is paired with #18cdcd in 14 real palettes, including Crayon Box and Boeing's brand system, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Boeing (https://brandsweets.com/colors/brands/boeing-com), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Resort (https://brandsweets.com/palettes/light#resort). — https://brandsweets.com/colors/taupe
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #18cdcd 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): 1.97:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #108484 (4.51:1); AA: background → #474747 (4.71:1); AAA: text → #0b6060 (7.35:1); AAA: background → #2b2b2b (7.18:1)
- On black (#000000): 10.65:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Crayon Box** (playful, vivid, friendly) — #ff5e5b, #00cecb, #ffed66, #ffffff, #222222 — Red, teal and yellow at crayon saturation — joyful, but on white with black type so it stays readable for grown-ups. — tool: https://brandsweets.com/palettes/new/ff5e5b-00cecb-ffed66-ffffff-222222 — collection: https://brandsweets.com/palettes/playful

## 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/18cdcd-a2bbbe-d45994-1f272d-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: "#18cdcd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.