# #3b7fbf

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

## Values

- Hex: `#3b7fbf`
- RGB: rgb(59, 127, 191)
- HSL: hsl(209, 53%, 49%)
- OKLCH: oklch(0.582 0.12 249.4)
- Relative luminance: 0.1987
- Nearest named color: Haddock’s Sweater (#277aba, Δ 2.248) — https://brandsweets.com/colors/haddocks-sweater
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3b7fbf

## Tints & shades

- Tints (toward white): #4c8cc8, #5f98ce, #73a5d4, #86b1da, #9abee0, #a9c8e5, #bdd4eb, #d0e1f1, #e4edf7, #f7fafd
- Shades (toward black): #3675b0, #30689c, #2b5d8c, #255079, #204669, #1a3956, #162f46, #102233, #0b1723, #050a10

## Harmonies

- Complementary: #bf7b3b
- Analogous: #3bbfbd, #3b3dbf
- Triadic: #bf3b7f, #7fbf3b
- Split-complementary: #bf3b3d, #bfbd3b
- Tetradic: #bd3bbf, #bf7b3b, #3dbf3b

## Colors that go with #3b7fbf

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 #3b7fbf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Disney (https://brandsweets.com/colors/brands/disney-com), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #3b7fbf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #3b7fbf in 10 real palettes, including Wired's brand system and Beach Hut, as the accent. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #3b7fbf, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3b7fbf: 8 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
- **Crimson** #dc143c [pool] — Crimson is paired with #3b7fbf in 14 real palettes, including NASCAR's brand system and Retro Pop, as the supporting colour. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #3b7fbf: 8 real palettes, including Astro's brand system and Telegram's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #3b7fbf: 5 real palettes, including Honda's brand system and AT&T's brand system, as the supporting colour. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), AT&T (https://brandsweets.com/colors/brands/att-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 4.22:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #387ab7 (4.53:1); AA: background → #0f0f0f (4.54:1); AAA: text → #2a5b89 (7.1:1)
- On black (#000000): 4.97:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #639bcf (7.12:1)

## Brands using this color

- **Honda** — accent #337ab7 (Δ 1.936) — https://brandsweets.com/colors/brands/honda-com

## Fonts for this mood

- 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/3b7fbf-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: "#3b7fbf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.