# #2b78bf

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

## Values

- Hex: `#2b78bf`
- RGB: rgb(43, 120, 191)
- HSL: hsl(209, 63%, 46%)
- OKLCH: oklch(0.561 0.133 250.1)
- Relative luminance: 0.1771
- Nearest named color: Haddock’s Sweater (#277aba, Δ 1.081) — https://brandsweets.com/colors/haddocks-sweater
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2b78bf

## Tints & shades

- Tints (toward white): #3385d1, #4891d5, #61a0db, #76ade0, #8bb9e5, #9fc6e9, #b4d2ee, #cde1f4, #e2eef8, #f7fafd
- Shades (toward black): #286daf, #24639e, #1f5689, #1b4c79, #184168, #143757, #102c47, #0b1f32, #081521, #040a11

## Harmonies

- Complementary: #bf732b
- Analogous: #2bbfbd, #2b2ebf
- Triadic: #bf2b78, #78bf2b
- Split-complementary: #bf2b2e, #bfbd2b
- Tetradic: #bd2bbf, #bf732b, #2ebf2b

## Colors that go with #2b78bf

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 #2b78bf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #2b78bf — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/crimson
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #2b78bf 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 #2b78bf 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] — 14 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #2b78bf, 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), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #2b78bf: 11 real palettes, including Hershey's's brand system and General Mills's brand system, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #2b78bf: 8 real palettes, including Astro's brand system and Deep Water, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Venmo (https://brandsweets.com/colors/brands/venmo-com), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #2b78bf: 6 real palettes, including Venmo's brand system and Apple's brand system, as the lead colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Apple (https://brandsweets.com/colors/brands/apple-com), ASUS (https://brandsweets.com/colors/brands/asus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 4.62:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #215b91 (7.07:1)
- On black (#000000): 4.54:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #599bd9 (7.12:1)

## Brands using this color

- **Dollar General** — accent #2a77bd (Δ 0.403) — https://brandsweets.com/colors/brands/dollargeneral-com
- **American Express** — primary #2e77bc (Δ 0.498) — https://brandsweets.com/colors/brands/americanexpress-com
- **Astro** — primary #3178c6 (Δ 1.207) — https://brandsweets.com/colors/brands/astro-build
- **NASCAR** — accent #007ac2 (Δ 1.469) — https://brandsweets.com/colors/brands/nascar-com
- **Honda** — accent #337ab7 (Δ 1.573) — https://brandsweets.com/colors/brands/honda-com
- **Hershey's** — accent #007bbd (Δ 1.655) — https://brandsweets.com/colors/brands/hersheys-com
- **Skechers** — accent #1973c1 (Δ 1.898) — https://brandsweets.com/colors/brands/skechers-com
- **Wired** — primary #057dbc (Δ 1.942) — https://brandsweets.com/colors/brands/wired-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/2b78bf-9cacc4-df4e4e-1f212d-e9f1f1?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: "#2b78bf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.