# #003166

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

## Values

- Hex: `#003166`
- RGB: rgb(0, 49, 102)
- HSL: hsl(211, 100%, 20%)
- OKLCH: oklch(0.318 0.105 255.1)
- Relative luminance: 0.0316
- Nearest named color: Marine (#042e60, Δ 1.299) — https://brandsweets.com/colors/marine
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/003166

## Tints & shades

- Tints (toward white): #00458f, #0059b8, #006adb, #057eff, #2e93ff, #57a8ff, #80bdff, #a3d0ff, #cce5ff, #f5faff
- Shades (toward black): #002c5c, #002a57, #00254d, #002347, #001e3d, #001933, #00162e, #001124, #000f1f, #000a14

## Harmonies

- Complementary: #663500
- Analogous: #006466, #020066
- Triadic: #660031, #316600
- Split-complementary: #660200, #646600
- Tetradic: #660064, #663500, #006602

## Colors that go with #003166

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 #003166: softer than #000 and cool enough to feel like part of the same palette. Seen in: CeraVe (https://brandsweets.com/colors/brands/cerave-com), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Chobani (https://brandsweets.com/colors/brands/chobani-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #003166 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Teal** #008080 [harmony, pool: analogous] — Teal is #003166's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Blue** #0000ff [pool] — 10 real palettes, including Alaska Airlines's brand system and Monzo's brand system put Blue beside #003166, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Jeep (https://brandsweets.com/colors/brands/jeep-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #003166: 7 real palettes, including Open House and Coastal, as the supporting colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Coastal (https://brandsweets.com/palettes/cool#coastal), SoFi (https://brandsweets.com/colors/brands/sofi-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #003166: 4 real palettes, including Blue Mono and Purina Pro Plan's brand system, as the lead colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), MLB (https://brandsweets.com/colors/brands/mlb-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #003166: 4 real palettes, including Blue Mono and Blizzard's brand system, as the supporting colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Retool (https://brandsweets.com/colors/brands/retool-com), Arctic (https://brandsweets.com/palettes/clean#arctic). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #003166: 5 real palettes, including Lamborghini's brand system and Vimeo's brand system, as the supporting colour. Seen in: Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Kraken (https://brandsweets.com/colors/brands/kraken-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 12.87:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.63:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0071eb (4.56:1); AA: background → #999999 (4.52:1); AAA: text → #3898ff (7.1:1); AAA: background → #bfbfbf (7:1)

## Brands using this color

- **Panasonic** — secondary #0f315f (Δ 1.492) — https://brandsweets.com/colors/brands/panasonic-com
- **Confluent** — primary #143464 (Δ 1.812) — https://brandsweets.com/colors/brands/confluent-io
- **Nintendo** — primary #042c6c (Δ 1.827) — https://brandsweets.com/colors/brands/nintendo-com
- **Hyundai** — primary #002c5f (Δ 1.885) — https://brandsweets.com/colors/brands/hyundaiusa-com
- **Hyundai** — accent #002c5e (Δ 1.998) — https://brandsweets.com/colors/brands/hyundaiusa-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/003166-9cabc4-df534e-1f202d-e9f1f1?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: "#003166" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.