# #133f44

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

## Values

- Hex: `#133f44`
- RGB: rgb(19, 63, 68)
- HSL: hsl(186, 56%, 17%)
- OKLCH: oklch(0.34 0.048 205.7)
- Relative luminance: 0.0411
- Nearest named color: Sunken Harbour (#1c3d44, Δ 0.963) — https://brandsweets.com/colors/sunken-harbour
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/133f44

## Tints & shades

- Tints (toward white): #1c5c63, #257a83, #2e97a3, #37b5c3, #58c4d0, #78cfd9, #98dae2, #b7e6eb, #d7f1f4, #f7fcfd
- Shades (toward black): #123b40, #103438, #0f3034, #0d2c30, #0c292c, #0a2124, #091e20, #081a1c, #061214, #040f10

## Harmonies

- Complementary: #441813
- Analogous: #134430, #132644
- Triadic: #44133f, #3f4413
- Split-complementary: #441326, #443013
- Tetradic: #301344, #441813, #264413

## Colors that go with #133f44

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Crimson** #dc143c [harmony, pool: complementary] — Crimson sits directly opposite #133f44 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/crimson
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #133f44's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Astro (https://brandsweets.com/colors/brands/astro-build), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #133f44's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Gusto (https://brandsweets.com/colors/brands/gusto-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #133f44 in 5 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Jeep's brand system and Instacart's brand system put Blue beside #133f44, as the accent. Seen in: Jeep (https://brandsweets.com/colors/brands/jeep-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #133f44, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Nursery (https://brandsweets.com/palettes/light#nursery), Blush (https://brandsweets.com/palettes/light#blush). — https://brandsweets.com/colors/blush-pink
- **Burlywood** #deb887 [pool] — Burlywood is paired with #133f44 in 4 real palettes, including Polaroid and Coastal, as the accent. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid), Coastal (https://brandsweets.com/palettes/cool#coastal), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/burlywood
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #133f44: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 11.52:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.82:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #27818b (4.6:1); AA: background → #a3a3a3 (4.57:1); AAA: text → #32a6b3 (7.24:1); AAA: background → #cccccc (7.18:1)

## Brands using this color

- **HubSpot** — primary #124548 (Δ 1.986) — https://brandsweets.com/colors/brands/hubspot-com
- **HubSpot** — accent #124548 (Δ 1.986) — https://brandsweets.com/colors/brands/hubspot-com

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold
- 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/133f44-a2b8be-df4e86-1f262d-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: "#133f44" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.