# #166bda

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

## Values

- Hex: `#166bda`
- RGB: rgb(22, 107, 218)
- HSL: hsl(214, 82%, 47%)
- OKLCH: oklch(0.546 0.187 257.9)
- Relative luminance: 0.1575
- Nearest named color: Royal Blue (#4169e1, Δ 3.127) — https://brandsweets.com/colors/royalblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/166bda

## Tints & shades

- Tints (toward white): #2077e9, #3785eb, #4f94ee, #66a2f0, #82b3f3, #99c1f5, #b0cff7, #c7ddf9, #dfebfc, #f6f9fe
- Shades (toward black): #1462c8, #1156b0, #104d9e, #0e448b, #0c3b79, #0a3061, #08274f, #061e3c, #041225, #020913

## Harmonies

- Complementary: #da8516
- Analogous: #16cdda, #2316da
- Triadic: #da166b, #6bda16
- Split-complementary: #da2316, #cdda16
- Tetradic: #da16cd, #da8516, #16da23

## Colors that go with #166bda

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 #166bda: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #166bda — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Chase (https://brandsweets.com/colors/brands/chase-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #166bda on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #166bda in 11 real palettes, including NBA's brand system and Walmart's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 15 real palettes, including BBC's brand system and EA's brand system put Blue beside #166bda, as the accent. Seen in: BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #166bda: 14 real palettes, including Carrefour's brand system and Unilever's brand system, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #166bda: 6 real palettes, including NBA's brand system and Webflow's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #166bda: 7 real palettes, including Astro's brand system and Elastic's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Elastic (https://brandsweets.com/colors/brands/elastic-co), Venmo (https://brandsweets.com/colors/brands/venmo-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 5.06:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1156b0 (7.04:1)
- On black (#000000): 4.15:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1772e8 (4.61:1); AA: background → #f2f2f2 (4.52:1); AAA: text → #5899ee (7.21:1)

## Brands using this color

- **Foot Locker** — accent #036ad8 (Δ 0.708) — https://brandsweets.com/colors/brands/footlocker-com
- **GitHub** — accent #0969da (Δ 0.711) — https://brandsweets.com/colors/brands/github
- **Loom** — primary #1868db (Δ 0.779) — https://brandsweets.com/colors/brands/loom-com
- **Loom** — secondary #1868db (Δ 0.779) — https://brandsweets.com/colors/brands/loom-com
- **Khan Academy** — accent #0069d6 (Δ 1.076) — https://brandsweets.com/colors/brands/khanacademy-org
- **ASUS** — accent #006ce1 (Δ 1.143) — https://brandsweets.com/colors/brands/asus-com
- **NBA** — secondary #0268d6 (Δ 1.217) — https://brandsweets.com/colors/brands/nba-com
- **Walmart** — secondary #0071dc (Δ 1.511) — https://brandsweets.com/colors/brands/walmart-com
- **Fitbit** — secondary #1967d2 (Δ 1.53) — https://brandsweets.com/colors/brands/fitbit-com
- **HashiCorp** — primary #2264d6 (Δ 1.783) — https://brandsweets.com/colors/brands/hashicorp-com
- **HashiCorp** — accent #2264d6 (Δ 1.783) — https://brandsweets.com/colors/brands/hashicorp-com
- **Subaru** — secondary #1971d4 (Δ 1.923) — https://brandsweets.com/colors/brands/subaru-com

## 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/166bda-9ca9c4-df5a4e-1f1f2d-e9f0f1?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: "#166bda" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.