# #218cca

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

## Values

- Hex: `#218cca`
- RGB: rgb(33, 140, 202)
- HSL: hsl(202, 72%, 46%)
- OKLCH: oklch(0.612 0.131 240.6)
- Relative luminance: 0.2334
- Nearest named color: steelblue (#4682b4, Δ 4.076) — https://brandsweets.com/colors/steelblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/218cca

## Tints & shades

- Tints (toward white): #289adc, #3ea4e0, #58b1e4, #6ebbe7, #84c5eb, #9ad0ef, #b0daf2, #cae6f6, #e0f1fa, #f6fbfe
- Shades (toward black): #1e80b8, #1b74a7, #186491, #15587f, #124c6e, #0f405c, #0c344b, #092435, #061823, #030c12

## Harmonies

- Complementary: #ca5f21
- Analogous: #21cab3, #2137ca
- Triadic: #ca218c, #8cca21
- Split-complementary: #ca2137, #cab321
- Tetradic: #b321ca, #ca5f21, #37ca21

## Colors that go with #218cca

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 #218cca: softer than #000 and cool enough to feel like part of the same palette. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Disney (https://brandsweets.com/colors/brands/disney-com), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Red** #ff0000 [harmony, pool: split] — Red is a split-complement of #218cca: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Nike (https://brandsweets.com/colors/brands/nike-com), Databricks (https://brandsweets.com/colors/brands/databricks-com). — https://brandsweets.com/colors/red
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #218cca on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #218cca in 11 real palettes, including Beach Hut and Wired's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wired (https://brandsweets.com/colors/brands/wired-com), Google (https://brandsweets.com/colors/brands/google-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 11 real palettes, including Readymag's brand system and Qualcomm's brand system put Blue beside #218cca, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Unity (https://brandsweets.com/colors/brands/unity-com), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #218cca: 8 real palettes, including Hershey's's brand system and Glacier, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #218cca in 12 real palettes, including NASCAR's brand system and Retro Pop, as the supporting colour. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wendy's (https://brandsweets.com/colors/brands/wendys-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/crimson
- **Deep Pink** #ff1493 [harmony, pool: triadic] — Deep Pink completes a triad with #218cca — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: JetBrains (https://brandsweets.com/colors/brands/jetbrains-com), Ubisoft (https://brandsweets.com/colors/brands/ubisoft-com), Maybelline (https://brandsweets.com/colors/brands/maybelline-com). — https://brandsweets.com/colors/deeppink

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

- On white (#ffffff): 3.7:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1d7db4 (4.52:1); AA: background → #1c1c1c (4.6:1); AAA: text → #165e88 (7.02:1)
- On black (#000000): 5.67:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #319edd (7.07:1)

## Brands using this color

- **Telegram** — accent #0088cc (Δ 1.602) — https://brandsweets.com/colors/brands/telegram-org
- **Telegram** — secondary #318fd3 (Δ 1.823) — https://brandsweets.com/colors/brands/telegram-org

## 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/218cca-9cb1c4-df4e5f-1f222d-e9f1f0?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: "#218cca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.