# #306c6e

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

## Values

- Hex: `#306c6e`
- RGB: rgb(48, 108, 110)
- HSL: hsl(182, 39%, 31%)
- OKLCH: oklch(0.493 0.062 198.3)
- Relative luminance: 0.1248
- Nearest named color: Deep Pool Teal (#366d68, Δ 1.192) — https://brandsweets.com/colors/deep-pool-teal
- Moods: cool, modern
- Page: https://brandsweets.com/colors/306c6e

## Tints & shades

- Tints (toward white): #3b8487, #44999c, #51b0b3, #6abbbe, #83c6c9, #98d0d2, #b1dbdd, #cae7e8, #dff0f1, #f8fcfc
- Shades (toward black): #2c6163, #285a5c, #245052, #1f4647, #1c3f40, #173435, #132a2b, #0e1f20, #0b1819, #060e0e

## Harmonies

- Complementary: #6e3230
- Analogous: #306e51, #304d6e
- Triadic: #6e306c, #6c6e30
- Split-complementary: #6e304d, #6e5130
- Tetradic: #51306e, #6e3230, #4d6e30

## Colors that go with #306c6e

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 #306c6e: softer than #000 and cool enough to feel like part of the same palette. Seen in: Gusto (https://brandsweets.com/colors/brands/gusto-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Pampers (https://brandsweets.com/colors/brands/pampers-com), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Firebrick** #b22222 [harmony, pool: complementary] — Firebrick sits directly opposite #306c6e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Newsprint (https://brandsweets.com/palettes/editorial#newsprint), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/firebrick
- **Blue** #0000ff [pool] — 4 real palettes, including Warp's brand system and Rolex's brand system put Blue beside #306c6e, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Rolex (https://brandsweets.com/colors/brands/rolex-com), Activision (https://brandsweets.com/colors/brands/activision-com), Kia (https://brandsweets.com/colors/brands/kia-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #306c6e: 4 real palettes, including Alpine and Open House, as the supporting colour. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Open House (https://brandsweets.com/palettes/clean#open-house), Dusk (https://brandsweets.com/palettes/cool#dusk), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #306c6e: 4 real palettes, including Ink & Paper and Fintech Trust, as the accent. Seen in: Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Intel (https://brandsweets.com/colors/brands/intel-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #306c6e: 5 real palettes, including Desert Road and Clay & Linen, as the lead colour. Seen in: Desert Road (https://brandsweets.com/palettes/warm#desert-road), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #306c6e in 10 real palettes, including Gemstone and Redfin's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Redfin (https://brandsweets.com/colors/brands/redfin-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #306c6e: 12 real palettes, including The New York Times's brand system and HP's brand system, as the supporting colour. Seen in: The New York Times (https://brandsweets.com/colors/brands/nytimes-com), HP (https://brandsweets.com/colors/brands/hp-com), Campus (https://brandsweets.com/palettes/friendly#campus), Dutch Bros (https://brandsweets.com/colors/brands/dutchbros-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 6.01:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2c6163 (7.01:1)
- On black (#000000): 3.5:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3a8183 (4.65:1); AA: background → #e0e0e0 (4.55:1); AAA: text → #49a3a7 (7.08:1)

## Curated palettes containing it

- **Mid-Century** (vintage, retro, warm, muted) — #d9822b, #2f6f73, #e6b33d, #f7efdf, #2b2622 — Tangerine, teal and mustard on cream — the 1960s lounge trio, one of the few retro palettes with real hue contrast. — tool: https://brandsweets.com/palettes/new/d9822b-2f6f73-e6b33d-f7efdf-2b2622 — collection: https://brandsweets.com/palettes/vintage

## 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/306c6e-a2babe-d45990-1f272d-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: "#306c6e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.