# #2a306f

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

## Values

- Hex: `#2a306f`
- RGB: rgb(42, 48, 111)
- HSL: hsl(235, 45%, 30%)
- OKLCH: oklch(0.342 0.108 275.1)
- Relative luminance: 0.0375
- Nearest named color: Atlantic Navy (#13336f, Δ 2.668) — https://brandsweets.com/colors/atlantic-navy
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/2a306f

## Tints & shades

- Tints (toward white): #343b89, #3e46a3, #4650b9, #6068c3, #7a81cd, #9499d6, #aeb2e0, #c4c7e9, #dedff2, #f8f8fc
- Shades (toward black): #262b64, #23285c, #1f2351, #1c204a, #181b3f, #141634, #11132c, #0d0e21, #0a0b1a, #06060f

## Harmonies

- Complementary: #6f692a
- Analogous: #2a526f, #472a6f
- Triadic: #6f2a30, #306f2a
- Split-complementary: #6f472a, #526f2a
- Tetradic: #6f2a52, #6f692a, #2a6f47

## Colors that go with #2a306f

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

- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #2a306f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 8 real palettes, including Alaska Airlines's brand system and Procter & Gamble's brand system put Blue beside #2a306f, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #2a306f: 4 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 #2a306f: 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
- **Crimson** #dc143c [pool] — Crimson is paired with #2a306f in 7 real palettes, including Casper Sleep's brand system and Marvel's brand system, as the lead colour. 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
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #2a306f: 4 real palettes, including Kraken's brand system and Lamborghini's brand system, as the accent. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #2a306f: 18 real palettes, including Panasonic's brand system and Hasbro's brand system, as the accent. Seen in: Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/denim
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #2a306f: 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): 11.99:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.75:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #676fc5 (4.66:1); AA: background → #a1a1a1 (4.64:1); AAA: text → #8c92d4 (7.18:1); AAA: background → #c7c7c7 (7.1:1)

## Brands using this color

- **Casper Sleep** — accent #1e306e (Δ 1.64) — https://brandsweets.com/colors/brands/casper-com

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold
- 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/2a306f-9e9cc4-df8d4e-241f2d-e9eef1?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: "#2a306f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.