# #0900b3

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

## Values

- Hex: `#0900b3`
- RGB: rgb(9, 0, 179)
- HSL: hsl(243, 100%, 35%)
- OKLCH: oklch(0.349 0.239 265.4)
- Relative luminance: 0.0331
- Nearest named color: Bohemian Blue (#0000aa, Δ 1.763) — https://brandsweets.com/colors/bohemian-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0900b3

## Tints & shades

- Tints (toward white): #0a00d1, #0c00f5, #2014ff, #3d33ff, #5f57ff, #7c75ff, #9994ff, #b6b3ff, #d8d6ff, #f5f5ff
- Shades (toward black): #0800a3, #070094, #070085, #060075, #050066, #040052, #030042, #030033, #020024, #010014

## Harmonies

- Complementary: #aab300
- Analogous: #0050b3, #6200b3
- Triadic: #b30900, #00b309
- Split-complementary: #b36200, #50b300
- Tetradic: #b30050, #aab300, #00b362

## Colors that go with #0900b3

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 #0900b3: 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), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Jeep (https://brandsweets.com/colors/brands/jeep-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0900b3 — 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), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/crimson
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #0900b3: 6 real palettes, including Tide's brand system and Unilever's brand system, as the lead colour. Seen in: Tide (https://brandsweets.com/colors/brands/tide-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Oreo (https://brandsweets.com/colors/brands/oreo-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #0900b3: 5 real palettes, including Blue Mono and Canva's brand system, as the supporting colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Peacock (https://brandsweets.com/colors/brands/peacocktv-com). — https://brandsweets.com/colors/cornflowerblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #0900b3: 4 real palettes, including Unilever's brand system and Activision's brand system, as the accent. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Activision (https://brandsweets.com/colors/brands/activision-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #0900b3: 4 real palettes, including Absolut's brand system and Cargo's brand system, as the supporting colour. Seen in: Absolut (https://brandsweets.com/colors/brands/absolut-com), Cargo (https://brandsweets.com/colors/brands/cargo-site), Readymag (https://brandsweets.com/colors/brands/readymag-com), Samsung (https://brandsweets.com/colors/brands/samsung-com). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Blue Mono and Fintech Trust put Midnight Blue beside #0900b3, as that palette's text colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com). — https://brandsweets.com/colors/midnightblue
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #0900b3 in 6 real palettes, including Intercom's brand system and Tide's brand system, as the supporting colour. Seen in: Intercom (https://brandsweets.com/colors/brands/intercom-com), Tide (https://brandsweets.com/colors/brands/tide-com), NASA (https://brandsweets.com/colors/brands/nasa-gov), Doordash (https://brandsweets.com/colors/brands/doordash-com). — https://brandsweets.com/colors/orangered

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

- On white (#ffffff): 12.63:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.66:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #645cff (4.52:1); AA: background → #9c9c9c (4.6:1); AAA: text → #908aff (7.27:1); AAA: background → #c2c2c2 (7.09:1)

## Brands using this color

- **JetBlue** — accent #0000aa (Δ 1.763) — https://brandsweets.com/colors/brands/jetblue-com
- **Absolut** — accent #0000bd (Δ 1.766) — https://brandsweets.com/colors/brands/absolut-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/0900b3-a39cc4-dfa04e-261f2d-e9edf1?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: "#0900b3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.