# #18bf9d

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

## Values

- Hex: `#18bf9d`
- RGB: rgb(24, 191, 157)
- HSL: hsl(168, 78%, 42%)
- OKLCH: oklch(0.719 0.134 173.4)
- Relative luminance: 0.3989
- Nearest named color: Bleached Olive (#55bb88, Δ 3.38) — https://brandsweets.com/colors/bleached-olive
- Moods: vivid
- Page: https://brandsweets.com/colors/18bf9d

## Tints & shades

- Tints (toward white): #1bdab4, #2ae5bf, #45e8c7, #5cebce, #77eed6, #92f2de, #a9f4e5, #c4f8ed, #dbfbf4, #f6fefc
- Shades (toward black): #15ac8e, #139a7f, #118d74, #0f7b65, #0d6856, #0b5647, #084438, #07362d, #04241e, #02120f

## Harmonies

- Complementary: #bf1839
- Analogous: #18bf4a, #188dbf
- Triadic: #9d18bf, #bf9d18
- Split-complementary: #bf188d, #bf4a18
- Tetradic: #4a18bf, #bf1839, #8dbf18

## Colors that go with #18bf9d

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 #18bf9d: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), N26 (https://brandsweets.com/colors/brands/n26-com), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony, pool: complementary] — Hot Pink sits directly opposite #18bf9d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Blue** #0000ff [pool] — 4 real palettes, including Unity's brand system and Canva's brand system put Blue beside #18bf9d, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #18bf9d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #18bf9d in 4 real palettes, including DuckDuckGo's brand system and Diner, as the supporting colour. Seen in: DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Diner (https://brandsweets.com/palettes/vivid#diner), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com). — https://brandsweets.com/colors/crimson
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Fintech Trust and Ford's brand system put Midnight Blue beside #18bf9d, as the text colour against it. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Ford (https://brandsweets.com/colors/brands/ford-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 6 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #18bf9d, as the supporting colour. Seen in: Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Diner (https://brandsweets.com/palettes/vivid#diner), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #18bf9d in 6 real palettes, including Khan Academy's brand system and Docker's brand system, as the accent. Seen in: Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Docker (https://brandsweets.com/colors/brands/docker-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 2.34:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #10846d (4.62:1); AA: background → #3d3d3d (4.64:1); AAA: text → #0c6452 (7.09:1); AAA: background → #1f1f1f (7.05:1)
- On black (#000000): 8.98:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Khan Academy** — primary #14bc94 (Δ 1.361) — https://brandsweets.com/colors/brands/khanacademy-org
- **Khan Academy** — secondary #0cbc94 (Δ 1.414) — https://brandsweets.com/colors/brands/khanacademy-org

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/18bf9d-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: "#18bf9d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.