# #18ec9b

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

## Values

- Hex: `#18ec9b`
- RGB: rgb(24, 236, 155)
- HSL: hsl(157, 85%, 51%)
- OKLCH: oklch(0.833 0.188 159.2)
- Relative luminance: 0.6255
- Nearest named color: Grotesque Green (#64e986, Δ 3.274) — https://brandsweets.com/colors/grotesque-green
- Moods: vivid
- Page: https://brandsweets.com/colors/18ec9b

## Tints & shades

- Tints (toward white): #2feea5, #42f0ad, #5af2b7, #71f4c2, #89f5cc, #9cf7d4, #b4f9de, #cbfbe9, #defcf1, #f6fefb
- Shades (toward black): #12d98d, #10c680, #0eaf71, #0c9762, #0b8456, #096d46, #075537, #053d28, #032a1c, #02130c

## Harmonies

- Complementary: #ec1869
- Analogous: #18ec31, #18d3ec
- Triadic: #9b18ec, #ec9b18
- Split-complementary: #ec18d3, #ec3118
- Tetradic: #3118ec, #ec1869, #d3ec18

## Colors that go with #18ec9b

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 #18ec9b in 6 real palettes, including 7-Eleven's brand system and Astro's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Astro (https://brandsweets.com/colors/brands/astro-build), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Chime (https://brandsweets.com/colors/brands/chime-com). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #18ec9b 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/violet
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #18ec9b: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #18ec9b: 3 real palettes, including Prime Video's brand system and Remix's brand system, as the supporting colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #18ec9b in 3 real palettes, including MongoDB's brand system and Docker's brand system, as the supporting colour. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Docker (https://brandsweets.com/colors/brands/docker-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #18ec9b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lightcoral
- **Yellow Green** #9acd32 [harmony, pool: analogous] — Yellow Green is #18ec9b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com). — https://brandsweets.com/colors/yellowgreen
- **Blue** #0000ff [pool] — Two real palettes: MongoDB's brand system and Minecraft's brand system put Blue beside #18ec9b, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 1.55:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0b8456 (4.72:1); AA: background → #595959 (4.51:1); AAA: text → #086340 (7.32:1); AAA: background → #3b3b3b (7.21:1)
- On black (#000000): 13.51:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Prime Video** — accent #37f1a3 (Δ 1.888) — https://brandsweets.com/colors/brands/primevideo-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/18ec9b-a2beb7-d459c4-1f2c2d-e9f1ea?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: "#18ec9b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.