# #0b78bc

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

## Values

- Hex: `#0b78bc`
- RGB: rgb(11, 120, 188)
- HSL: hsl(203, 89%, 39%)
- OKLCH: oklch(0.553 0.136 245.1)
- Relative luminance: 0.1713
- Nearest named color: Haddock’s Sweater (#277aba, Δ 1.349) — https://brandsweets.com/colors/haddocks-sweater
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0b78bc

## Tints & shades

- Tints (toward white): #0d8bd9, #139cf1, #30a8f3, #4db4f5, #6ac0f6, #82caf8, #9fd7f9, #bce3fb, #d8effd, #f5fbfe
- Shades (toward black): #0a6fae, #09639a, #08598c, #074d78, #06446a, #053757, #042e48, #032235, #021927, #010c13

## Harmonies

- Complementary: #bc4f0b
- Analogous: #0bbca7, #0b20bc
- Triadic: #bc0b78, #78bc0b
- Split-complementary: #bc0b20, #bca70b
- Tetradic: #a70bbc, #bc4f0b, #20bc0b

## Colors that go with #0b78bc

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 #0b78bc: softer than #000 and cool enough to feel like part of the same palette. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), Disney (https://brandsweets.com/colors/brands/disney-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #0b78bc on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #0b78bc in 10 real palettes, including Wired's brand system and Lemon Squeezy's brand system, as the accent. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 13 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #0b78bc, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), BBC (https://brandsweets.com/colors/brands/bbc-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #0b78bc: 11 real palettes, including Hershey's's brand system and Glacier, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #0b78bc: 4 real palettes, including NBA's brand system and Coca-Cola's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #0b78bc in 16 real palettes, including NASCAR's brand system and State Farm's brand system, as the supporting colour. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #0b78bc: 7 real palettes, including Deep Water and Venmo's brand system, as the lead colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Venmo (https://brandsweets.com/colors/brands/venmo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 4.74:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #085c91 (7.12:1)
- On black (#000000): 4.43:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #0b7bc1 (4.62:1); AA: background → #fafafa (4.54:1); AAA: text → #139cf1 (7.05:1)

## Brands using this color

- **Hershey's** — accent #007bbd (Δ 0.822) — https://brandsweets.com/colors/brands/hersheys-com
- **NASCAR** — accent #007ac2 (Δ 0.985) — https://brandsweets.com/colors/brands/nascar-com
- **FedEx** — accent #007ab7 (Δ 1.085) — https://brandsweets.com/colors/brands/fedex-com
- **Dollar General** — accent #2a77bd (Δ 1.258) — https://brandsweets.com/colors/brands/dollargeneral-com
- **Wired** — primary #057dbc (Δ 1.426) — https://brandsweets.com/colors/brands/wired-com
- **American Express** — primary #2e77bc (Δ 1.473) — https://brandsweets.com/colors/brands/americanexpress-com
- **General Mills** — accent #0074c1 (Δ 1.539) — https://brandsweets.com/colors/brands/generalmills-com
- **Skechers** — accent #1973c1 (Δ 1.738) — https://brandsweets.com/colors/brands/skechers-com
- **Capital One** — accent #0276b1 (Δ 1.784) — https://brandsweets.com/colors/brands/capitalone-com

## Curated palettes containing it

- **Glacier** (winter, cool, clean, technical) — #0077b6, #90e0ef, #023e8a, #f3f9fc, #03045e — Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth. — tool: https://brandsweets.com/palettes/new/0077b6-90e0ef-023e8a-f3f9fc-03045e — collection: https://brandsweets.com/palettes/winter
- **Deep Water** (ocean, dark, cool, luxury) — #00b4d8, #0077b6, #caf0f8, #03045e, #e8f6fb — Cyan and mid-blue on abyss navy with a foam highlight — the ocean at depth; the darker the surface, the brighter the water. — tool: https://brandsweets.com/palettes/new/00b4d8-0077b6-caf0f8-03045e-e8f6fb — collection: https://brandsweets.com/palettes/ocean

## 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/0b78bc-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: "#0b78bc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.