# #306791

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

## Values

- Hex: `#306791`
- RGB: rgb(48, 103, 145)
- HSL: hsl(206, 50%, 38%)
- OKLCH: oklch(0.496 0.089 244.1)
- Relative luminance: 0.1237
- Nearest named color: Chill of the Night (#256d8d, Δ 2.156) — https://brandsweets.com/colors/chill-of-the-night
- Moods: cool, modern
- Page: https://brandsweets.com/colors/306791

## Tints & shades

- Tints (toward white): #3878a8, #4088bf, #5796c7, #6ea5cf, #85b3d6, #9cc1de, #b3cfe6, #c9deed, #e0ecf5, #f7fafc
- Shades (toward black): #2d5f86, #285477, #244c6b, #1f415c, #1b3950, #173145, #122636, #0e1e2a, #09131b, #050b0f

## Harmonies

- Complementary: #915a30
- Analogous: #30918b, #303791
- Triadic: #913067, #679130
- Split-complementary: #913037, #918b30
- Tetradic: #8b3091, #915a30, #379130

## Colors that go with #306791

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 #306791: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), Harbour (https://brandsweets.com/palettes/cool#harbour), Gusto (https://brandsweets.com/colors/brands/gusto-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #306791's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Motorola (https://brandsweets.com/colors/brands/motorola-com), Stripe (https://brandsweets.com/colors/brands/stripe), Xbox (https://brandsweets.com/colors/brands/xbox-com), GitHub (https://brandsweets.com/colors/brands/github). — https://brandsweets.com/colors/royalblue
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #306791 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #306791 in 8 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Activision's brand system and Tesco's brand system put Blue beside #306791, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #306791: 6 real palettes, including Fintech Trust and Glacier, as the lead colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #306791 in 18 real palettes, including McDonald's's brand system and Wendy's's brand system, as the supporting colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Costco (https://brandsweets.com/colors/brands/costco-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #306791: 4 real palettes, including Venmo's brand system and Deep Water, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 6.04:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2b5c82 (7.1:1)
- On black (#000000): 3.47:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #397aac (4.55:1); AA: background → #e0e0e0 (4.58:1); AAA: text → #5e9bc9 (7.01:1)

## Brands using this color

- **The New York Times** — accent #326891 (Δ 0.375) — https://brandsweets.com/colors/brands/nytimes-com
- **FIFA** — secondary #326295 (Δ 1.762) — https://brandsweets.com/colors/brands/fifa-com

## Curated palettes containing it

- **Open House** (clean, cool, modern) — #2f6690, #8fa3b8, #e3a72f, #ffffff, #1b2a41 — Steel blue for trust, warm gold for the sold moment — an approachable brokerage that still feels established. — tool: https://brandsweets.com/palettes/new/2f6690-8fa3b8-e3a72f-ffffff-1b2a41 — collection: https://brandsweets.com/palettes/clean

## 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/306791-9caec4-df4e56-1f212d-e9f1f1?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: "#306791" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.