# #3897bc

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

## Values

- Hex: `#3897bc`
- RGB: rgb(56, 151, 188)
- HSL: hsl(197, 54%, 48%)
- OKLCH: oklch(0.637 0.103 227.8)
- Relative luminance: 0.266
- Nearest named color: Blue Ocean (#009dc4, Δ 2.202) — https://brandsweets.com/colors/blue-ocean
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3897bc

## Tints & shades

- Tints (toward white): #46a3c8, #5aadce, #6eb7d4, #81c0d9, #95cadf, #a9d4e5, #bcdeeb, #d0e8f1, #e4f1f7, #f7fbfd
- Shades (toward black): #348aad, #2e7b99, #296e89, #235e76, #1e5266, #1a4556, #143543, #0f2933, #09191f, #050d10

## Harmonies

- Complementary: #bc5e38
- Analogous: #38bca0, #3855bc
- Triadic: #bc3897, #97bc38
- Split-complementary: #bc3855, #bca038
- Tetradic: #a038bc, #bc5e38, #55bc38

## Colors that go with #3897bc

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 #3897bc: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Auth0 (https://brandsweets.com/colors/brands/auth0-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #3897bc in 7 real palettes, including Beach Hut and Wired's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wired (https://brandsweets.com/colors/brands/wired-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3897bc: 5 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), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #3897bc in 6 real palettes, including Diner and Retro Pop, as the lead colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Redfin (https://brandsweets.com/colors/brands/redfin-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #3897bc: 7 real palettes, including Telegram's brand system and Snowflake AI Data Cloud's brand system, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com), Patreon (https://brandsweets.com/colors/brands/patreon-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3897bc: 17 real palettes, including Gopro's brand system and Peacock, as the lead colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Dusk (https://brandsweets.com/palettes/cool#dusk), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #3897bc in 6 real palettes, including Ledger Dark and Open House, as the lead colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Open House (https://brandsweets.com/palettes/clean#open-house), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Chevrolet (https://brandsweets.com/colors/brands/chevrolet-com). — https://brandsweets.com/colors/goldenrod
- **Chocolate** #d2691e [harmony: complementary] — Chocolate sits directly opposite #3897bc 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/chocolate

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

- On white (#ffffff): 3.32:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2f7e9d (4.57:1); AA: background → #262626 (4.56:1); AAA: text → #235e76 (7.16:1)
- On black (#000000): 6.32:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #43a1c7 (7.16:1)

## 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/3897bc-9cb4c4-df4e6b-1f232d-e9f1ef?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: "#3897bc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.