# #18e2df

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

## Values

- Hex: `#18e2df`
- RGB: rgb(24, 226, 223)
- HSL: hsl(179, 81%, 49%)
- OKLCH: oklch(0.827 0.139 193.1)
- Relative luminance: 0.5991
- Nearest named color: turquoise (#40e0d0, Δ 2.098) — https://brandsweets.com/colors/turquoise
- Moods: vivid
- Page: https://brandsweets.com/colors/18e2df

## Tints & shades

- Tints (toward white): #2be9e6, #42ebe8, #59eeeb, #70f0ee, #87f2f1, #99f4f3, #b1f7f6, #c8f9f8, #dffcfb, #f6fefe
- Shades (toward black): #16d0cd, #13b9b6, #11a6a4, #0f8f8d, #0d7d7b, #0b6664, #095352, #063c3b, #042a29, #021212

## Harmonies

- Complementary: #e2181b
- Analogous: #18e27a, #1880e2
- Triadic: #df18e2, #e2df18
- Split-complementary: #e21880, #e27a18
- Tetradic: #7a18e2, #e2181b, #80e218

## Colors that go with #18e2df

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 #18e2df: 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), Boeing (https://brandsweets.com/colors/brands/boeing-com), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #18e2df in 4 real palettes, including Tiffany & Co.'s brand system and Formula 1's brand system, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #18e2df's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. 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). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #18e2df in 10 real palettes, including Crayon Box and Astro's brand system, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Astro (https://brandsweets.com/colors/brands/astro-build), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/taupe
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #18e2df 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
- **Blue** #0000ff [pool] — 3 real palettes, including Canva's brand system and Uber's brand system put Blue beside #18e2df, 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). — https://brandsweets.com/colors/blue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #18e2df: 3 real palettes, including Bluesky Social's brand system and Patreon's brand system, as the lead colour. Seen in: Bluesky Social (https://brandsweets.com/colors/brands/bsky-app), Patreon (https://brandsweets.com/colors/brands/patreon-com), Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/dodgerblue
- **Tomato** #ff6347 [pool] — 3 real palettes, including Crayon Box and Fresh Juice put Tomato beside #18e2df, as the lead colour. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Raycast (https://brandsweets.com/colors/brands/raycast). — https://brandsweets.com/colors/tomato

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

- On white (#ffffff): 1.62:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0e817f (4.7:1); AA: background → #545454 (4.68:1); AAA: text → #0a615f (7.27:1); AAA: background → #383838 (7.25:1)
- On black (#000000): 12.98:1 — 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/18e2df-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: "#18e2df" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.