# #0a334d

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

## Values

- Hex: `#0a334d`
- RGB: rgb(10, 51, 77)
- HSL: hsl(203, 77%, 17%)
- OKLCH: oklch(0.308 0.064 241.8)
- Relative luminance: 0.0297
- Nearest named color: Beyond the Stars (#0a3251, Δ 0.872) — https://brandsweets.com/colors/beyond-the-stars
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/0a334d

## Tints & shades

- Tints (toward white): #0f4b71, #136395, #187bb9, #1d93dd, #41a7e6, #66b8eb, #8ac9f0, #aed9f4, #d2eaf9, #f6fbfe
- Shades (toward black): #093048, #082a3f, #08273b, #072436, #062132, #051b29, #051824, #041520, #030f17, #020c12

## Harmonies

- Complementary: #4d240a
- Analogous: #0a4d45, #0a124d
- Triadic: #4d0a33, #334d0a
- Split-complementary: #4d0a12, #4d450a
- Tetradic: #450a4d, #4d240a, #124d0a

## Colors that go with #0a334d

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

- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #0a334d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Docker (https://brandsweets.com/colors/brands/docker-com), GEICO (https://brandsweets.com/colors/brands/geico-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com). — https://brandsweets.com/colors/royalblue
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #0a334d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: IHG (https://brandsweets.com/colors/brands/ihg-com), Harvest (https://brandsweets.com/palettes/warm#harvest), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/rust
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #0a334d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #0a334d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Alpine (https://brandsweets.com/palettes/cool#alpine), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #0a334d in 8 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 16 real palettes, including Monzo's brand system and Alaska Airlines's brand system put Blue beside #0a334d, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Blush put Blush Pink beside #0a334d, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/blush-pink
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #0a334d: 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): 13.18:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.59:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #187bb9 (4.57:1); AA: background → #999999 (4.63:1); AAA: text → #2b9de3 (7.03:1); AAA: background → #bdbdbd (7.01:1)

## Brands using this color

- **CeraVe** — secondary #0e3353 (Δ 1.167) — https://brandsweets.com/colors/brands/cerave-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/0a334d-9cb0c4-df4e5d-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: "#0a334d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.