# #308ba6

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

## Values

- Hex: `#308ba6`
- RGB: rgb(48, 139, 166)
- HSL: hsl(194, 55%, 42%)
- OKLCH: oklch(0.595 0.093 221.5)
- Relative luminance: 0.2185
- Nearest named color: Blue Moon (#3992a8, Δ 2.227) — https://brandsweets.com/colors/blue-moon
- Moods: cool, modern
- Page: https://brandsweets.com/colors/308ba6

## Tints & shades

- Tints (toward white): #379ebe, #45aac9, #5db5d0, #71bed6, #88c9dd, #a0d4e3, #b4dde9, #cce8f0, #dff1f6, #f7fbfd
- Shades (toward black): #2c7d96, #277086, #24667b, #1f596b, #1a4c5b, #163f4b, #11313b, #0e282f, #091a20, #050d10

## Harmonies

- Complementary: #a64c30
- Analogous: #30a687, #3050a6
- Triadic: #a6308b, #8ba630
- Split-complementary: #a63050, #a68730
- Tetradic: #8730a6, #a64c30, #50a630

## Colors that go with #308ba6

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 #308ba6: softer than #000 and cool enough to feel like part of the same palette. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: split] — Copper is a split-complement of #308ba6: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Notion (https://brandsweets.com/colors/brands/notion), Wellness (https://brandsweets.com/palettes/warm#wellness), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #308ba6: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Redfin (https://brandsweets.com/colors/brands/redfin-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Chocolate** #d2691e [harmony, pool: complementary] — Chocolate sits directly opposite #308ba6 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/chocolate
- **Amber** #ffbf00 [pool] — Amber is paired with #308ba6 in 4 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), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #308ba6: 6 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), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/cobalt
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #308ba6: 5 real palettes, including Telegram's brand system and Deep Water, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #308ba6: 16 real palettes, including Peacock and Discover's brand system, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Discover (https://brandsweets.com/colors/brands/discover-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Capital One (https://brandsweets.com/colors/brands/capitalone-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 3.91:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2c7d96 (4.69:1); AA: background → #171717 (4.58:1); AAA: text → #216073 (7.03:1)
- On black (#000000): 5.37:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #38a2c2 (7.12:1)

## Curated palettes containing it

- **Beach Hut** (summer, light, clean, cool) — #2e86ab, #f6bd60, #f28482, #fbfcfd, #1b2a38 — Sea blue with sun-bleached yellow and a coral — striped-canvas summer, softened so it works on a screen. — tool: https://brandsweets.com/palettes/new/2e86ab-f6bd60-f28482-fbfcfd-1b2a38 — collection: https://brandsweets.com/palettes/summer

## 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/308ba6-9cb6c4-df4e72-1f242d-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: "#308ba6" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.