# #239aa9

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

## Values

- Hex: `#239aa9`
- RGB: rgb(35, 154, 169)
- HSL: hsl(187, 66%, 40%)
- OKLCH: oklch(0.631 0.101 207.9)
- Relative luminance: 0.2633
- Nearest named color: Baltic (#279d9f, Δ 2.012) — https://brandsweets.com/colors/baltic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/239aa9

## Tints & shades

- Tints (toward white): #28b1c3, #34c3d5, #49c9da, #62d0df, #7cd8e4, #95e0e9, #afe7ef, #c4edf3, #ddf5f8, #f7fcfd
- Shades (toward black): #1f8a98, #1d7f8c, #196f7b, #17646e, #13545d, #10454c, #0d3a3f, #0a2a2f, #071f22, #030f11

## Harmonies

- Complementary: #a93223
- Analogous: #23a976, #2356a9
- Triadic: #a9239a, #9aa923
- Split-complementary: #a92356, #a97623
- Tetradic: #7623a9, #a93223, #56a923

## Colors that go with #239aa9

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 #239aa9: 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), Lido (https://brandsweets.com/palettes/vivid#lido), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/charcoal
- **Red** #ff0000 [harmony, pool: complementary] — Red sits directly opposite #239aa9 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Nike (https://brandsweets.com/colors/brands/nike-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/red
- **Copper** #b87333 [pool] — Designers have shipped Copper with #239aa9: 5 real palettes, including Dusk and Clean Beauty, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Wellness (https://brandsweets.com/palettes/warm#wellness), Atelier (https://brandsweets.com/palettes/elegant#atelier). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #239aa9 in 5 real palettes, including Diner and Redfin's brand system, as the lead colour. 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), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #239aa9: 9 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), Dusk (https://brandsweets.com/palettes/cool#dusk), Discover (https://brandsweets.com/colors/brands/discover-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #239aa9 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 Ford's brand system and SoFi's brand system put Midnight Blue beside #239aa9, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), SoFi (https://brandsweets.com/colors/brands/sofi-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #239aa9 in 4 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Elastic (https://brandsweets.com/colors/brands/elastic-co), 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): 3.35:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1d7f8c (4.7:1); AA: background → #262626 (4.52:1); AAA: text → #16606a (7.2:1)
- On black (#000000): 6.27:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #25a5b6 (7.14:1)

## 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/239aa9-a2b8be-df4e83-1f262d-e9f1ee?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: "#239aa9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.