# #18f7ca

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

## Values

- Hex: `#18f7ca`
- RGB: rgb(24, 247, 202)
- HSL: hsl(168, 93%, 53%)
- OKLCH: oklch(0.871 0.165 172.9)
- Relative luminance: 0.7098
- Nearest named color: Aphrodite Aqua (#45e9c1, Δ 3.649) — https://brandsweets.com/colors/aphrodite-aqua
- Moods: vivid
- Page: https://brandsweets.com/colors/18f7ca

## Tints & shades

- Tints (toward white): #30f8d0, #44f8d4, #5df9da, #70fade, #89fbe4, #9dfbe8, #b5fcee, #c9fdf3, #e1fef8, #f5fffd
- Shades (toward black): #09ecbf, #08d4ab, #07bb97, #06a283, #058f73, #04765f, #035e4b, #024538, #022c24, #011410

## Harmonies

- Complementary: #f71844
- Analogous: #18f75b, #18b4f7
- Triadic: #ca18f7, #f7ca18
- Split-complementary: #f718b4, #f75b18
- Tetradic: #5b18f7, #f71844, #b4f718

## Colors that go with #18f7ca

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Taupe** #483c32 [pool] — Taupe is paired with #18f7ca in 5 real palettes, including Astro's brand system and 7-Eleven's brand system, as the text colour against it. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/taupe
- **Hot Pink** #ff69b4 [harmony: complementary] — Hot Pink sits directly opposite #18f7ca 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #18f7ca: softer than #000 and cool enough to feel like part of the same palette. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #18f7ca in 3 real palettes, including Formula 1's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #18f7ca: 3 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). — https://brandsweets.com/colors/deepskyblue
- **Violet** #ee82ee [harmony: split] — Violet is a split-complement of #18f7ca: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/violet
- **Salmon** #fa8072 [harmony: split] — Salmon is a split-complement of #18f7ca: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/salmon
- **Lime Green** #32cd32 [harmony, pool: analogous] — Lime Green is #18f7ca's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Duolingo (https://brandsweets.com/colors/brands/duolingo). — https://brandsweets.com/colors/limegreen

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

- On white (#ffffff): 1.38:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #05856b (4.59:1); AA: background → #5e5e5e (4.69:1); AAA: text → #04624f (7.33:1); AAA: background → #424242 (7.27:1)
- On black (#000000): 15.2:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Astro** — accent #4bf3c8 (Δ 1.607) — https://brandsweets.com/colors/brands/astro-build
- **Formula 1** — primary #27f4d2 (Δ 1.621) — https://brandsweets.com/colors/brands/formula1-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/18f7ca-a2bebc-d459ad-1f2a2d-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: "#18f7ca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.