# #0a1fa3

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

## Values

- Hex: `#0a1fa3`
- RGB: rgb(10, 31, 163)
- HSL: hsl(232, 88%, 34%)
- OKLCH: oklch(0.352 0.205 265.5)
- Relative luminance: 0.0369
- Nearest named color: Dark Galaxy (#0018a8, Δ 1.425) — https://brandsweets.com/colors/dark-galaxy
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0a1fa3

## Tints & shades

- Tints (toward white): #0c24c0, #0e2be1, #1e3af1, #3f57f3, #5c70f5, #798af6, #9aa7f9, #b7c0fa, #d9ddfd, #f5f7fe
- Shades (toward black): #091c95, #091986, #081778, #071469, #06115b, #050e4d, #040c3e, #030930, #020622, #010413

## Harmonies

- Complementary: #a38f0a
- Analogous: #0a6ba3, #420aa3
- Triadic: #a30a1f, #1fa30a
- Split-complementary: #a3420a, #6ba30a
- Tetradic: #a30a6b, #a38f0a, #0aa342

## Colors that go with #0a1fa3

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 #0a1fa3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Behance (https://brandsweets.com/colors/brands/behance-net), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com). — https://brandsweets.com/colors/crimson
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #0a1fa3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), FedEx (https://brandsweets.com/colors/brands/fedex-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 5 real palettes, including Procter & Gamble's brand system and Pfizer's brand system put Blue beside #0a1fa3, as the supporting colour. Seen in: Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Zillow (https://brandsweets.com/colors/brands/zillow-com). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #0a1fa3: 6 real palettes, including Warbyparker's brand system and Unilever's brand system, as the accent. Seen in: Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #0a1fa3 in 7 real palettes, including Nivea's brand system and Discord's brand system, as the supporting colour. Seen in: Nivea (https://brandsweets.com/colors/brands/nivea-com), Discord (https://brandsweets.com/colors/brands/discord), Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/royalblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #0a1fa3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #0a1fa3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #0a1fa3: 3 real palettes, including 3M's brand system and Nintendo's brand system, as the supporting colour. Seen in: 3M (https://brandsweets.com/colors/brands/3m-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), MLB (https://brandsweets.com/colors/brands/mlb-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 12.08:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.74:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5268f4 (4.65:1); AA: background → #9e9e9e (4.51:1); AAA: text → #7e8ef7 (7.1:1); AAA: background → #c7c7c7 (7.15:1)

## Brands using this color

- **Tide** — secondary #13259c (Δ 1.65) — https://brandsweets.com/colors/brands/tide-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/0a1fa3-9c9dc4-df864e-231f2d-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: "#0a1fa3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.