# #003a70

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

## Values

- Hex: `#003a70`
- RGB: rgb(0, 58, 112)
- HSL: hsl(209, 100%, 22%)
- OKLCH: oklch(0.349 0.108 253.1)
- Relative luminance: 0.042
- Nearest named color: Atlantic Navy (#13336f, Δ 2.087) — https://brandsweets.com/colors/atlantic-navy
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/003a70

## Tints & shades

- Tints (toward white): #004f99, #0061bd, #0077e6, #0a89ff, #339cff, #5cb0ff, #80c1ff, #a8d5ff, #cce6ff, #f5faff
- Shades (toward black): #003566, #002f5c, #002d57, #00284d, #002242, #001d38, #00182e, #001529, #00101f, #000b14

## Harmonies

- Complementary: #703600
- Analogous: #00706e, #000270
- Triadic: #70003a, #3a7000
- Split-complementary: #700002, #706e00
- Tetradic: #6e0070, #703600, #027000

## Colors that go with #003a70

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #003a70 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Teal** #008080 [harmony, pool: analogous] — Teal is #003a70'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), Gusto (https://brandsweets.com/colors/brands/gusto-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Blue** #0000ff [pool] — 8 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #003a70, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Jeep (https://brandsweets.com/colors/brands/jeep-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #003a70: 4 real palettes, including Purina Pro Plan's brand system and Blue Mono, as the accent. Seen in: Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Unilever (https://brandsweets.com/colors/brands/unilever-com), MLB (https://brandsweets.com/colors/brands/mlb-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #003a70: 18 real palettes, including Hasbro's brand system and Panasonic's brand system, as the supporting colour. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #003a70 in 4 real palettes, including Confluent's brand system and Lido, as the accent. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Lido (https://brandsweets.com/palettes/vivid#lido), N26 (https://brandsweets.com/colors/brands/n26-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/lightseagreen
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #003a70 in 6 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour. Seen in: NASA (https://brandsweets.com/colors/brands/nasa-gov), Tide (https://brandsweets.com/colors/brands/tide-com), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/orangered
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #003a70: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 11.42:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.84:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0074e0 (4.57:1); AA: background → #a3a3a3 (4.53:1); AAA: text → #2e9aff (7.18:1); AAA: background → #cccccc (7.11:1)

## Brands using this color

- **Hasbro** — primary #003c69 (Δ 1.447) — https://brandsweets.com/colors/brands/hasbro-com
- **Plaid** — accent #043c67 (Δ 1.784) — https://brandsweets.com/colors/brands/plaid-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/003a70-9cacc4-df4e4e-1f212d-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: "#003a70" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.