# #3b9797

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

## Values

- Hex: `#3b9797`
- RGB: rgb(59, 151, 151)
- HSL: hsl(180, 44%, 41%)
- OKLCH: oklch(0.622 0.086 195.2)
- Relative luminance: 0.253
- Nearest named color: Baltic (#279d9f, Δ 1.863) — https://brandsweets.com/colors/baltic
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3b9797

## Tints & shades

- Tints (toward white): #43adad, #4fbaba, #65c3c3, #7bcccc, #91d4d4, #a3dbdb, #b9e4e4, #cfecec, #e2f4f4, #f8fcfc
- Shades (toward black): #358888, #317d7d, #2b6e6e, #255f5f, #215454, #1b4646, #153737, #102828, #0b1d1d, #060f0f

## Harmonies

- Complementary: #973b3b
- Analogous: #3b9769, #3b6997
- Triadic: #973b97, #97973b
- Split-complementary: #973b69, #97693b
- Tetradic: #693b97, #973b3b, #69973b

## Colors that go with #3b9797

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 #3b9797: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), N26 (https://brandsweets.com/colors/brands/n26-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #3b9797 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Wellness (https://brandsweets.com/palettes/warm#wellness), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Atelier (https://brandsweets.com/palettes/elegant#atelier). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [harmony, pool: complementary] — Crimson sits directly opposite #3b9797 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Redfin (https://brandsweets.com/colors/brands/redfin-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3b9797: 10 real palettes, including Peacock and Gopro's brand system, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Gopro (https://brandsweets.com/colors/brands/gopro-com), Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #3b9797 in 4 real palettes, including Ledger Dark and Noir Beauty, as the lead colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Open House (https://brandsweets.com/palettes/clean#open-house), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #3b9797, as that palette's text colour. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Ford (https://brandsweets.com/colors/brands/ford-com), SoFi (https://brandsweets.com/colors/brands/sofi-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 5 real palettes, including Gopro's brand system and Campus put Orange beside #3b9797, as the accent. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Campus (https://brandsweets.com/palettes/friendly#campus), Graphite (https://brandsweets.com/palettes/technical#graphite), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/orange
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #3b9797 in 7 real palettes, including Confluent's brand system and Subaru's brand system, as the supporting colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Subaru (https://brandsweets.com/colors/brands/subaru-com), Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 3.47:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #328181 (4.57:1); AA: background → #212121 (4.65:1); AAA: text → #255f5f (7.29:1)
- On black (#000000): 6.06:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #40a5a5 (7.14:1)

## 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/3b9797-a2bbbe-d45994-1f272d-e9f1ed?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: "#3b9797" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.