# #1d4949

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

## Values

- Hex: `#1d4949`
- RGB: rgb(29, 73, 73)
- HSL: hsl(180, 43%, 20%)
- OKLCH: oklch(0.375 0.048 195.3)
- Relative luminance: 0.0551
- Nearest named color: Tropical Forest (#024a43, Δ 2.06) — https://brandsweets.com/colors/tropical-forest
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/1d4949

## Tints & shades

- Tints (toward white): #296666, #348383, #3f9d9d, #4cb8b8, #69c3c3, #87cfcf, #a4dbdb, #bde5e5, #dbf0f0, #f8fcfc
- Shades (toward black): #1a4242, #193e3e, #163737, #143333, #112c2c, #0f2424, #0d2121, #0a1a1a, #091616, #060f0f

## Harmonies

- Complementary: #491d1d
- Analogous: #1d4933, #1d3349
- Triadic: #491d49, #49491d
- Split-complementary: #491d33, #49331d
- Tetradic: #331d49, #491d1d, #33491d

## Colors that go with #1d4949

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 #1d4949 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), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Teal** #008080 [harmony, pool: analogous] — Teal is #1d4949's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Gusto (https://brandsweets.com/colors/brands/gusto-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), N26 (https://brandsweets.com/colors/brands/n26-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Blue** #0000ff [pool] — 8 real palettes, including Jeep's brand system and Instacart's brand system put Blue beside #1d4949, as the accent. Seen in: Jeep (https://brandsweets.com/colors/brands/jeep-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #1d4949, as the supporting colour. Seen in: Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Nursery (https://brandsweets.com/palettes/light#nursery), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush). — https://brandsweets.com/colors/blush-pink
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #1d4949: 4 real palettes, including Paper & Pine and Clean Beauty, as the supporting colour. Seen in: Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Coastal (https://brandsweets.com/palettes/cool#coastal), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/cadetblue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #1d4949: 5 real palettes, including Notion's brand system and Desert Road. Seen in: Notion (https://brandsweets.com/colors/brands/notion), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Bakery (https://brandsweets.com/palettes/warm#bakery). — https://brandsweets.com/colors/copper
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1d4949: 13 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/denim
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #1d4949: 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): 9.99:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.1:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #338080 (4.54:1); AA: background → #b0b0b0 (4.61:1); AAA: text → #41a4a4 (7.07:1); AAA: background → #d9d9d9 (7.08:1)

## Brands using this color

- **Zendesk** — accent #17494d (Δ 0.783) — https://brandsweets.com/colors/brands/zendesk-com
- **Jeep** — secondary #1e4544 (Δ 1.365) — https://brandsweets.com/colors/brands/jeep-com
- **HubSpot** — primary #124548 (Δ 1.715) — https://brandsweets.com/colors/brands/hubspot-com
- **HubSpot** — accent #124548 (Δ 1.715) — https://brandsweets.com/colors/brands/hubspot-com
- **Squarespace** — accent #1e4c41 (Δ 1.968) — https://brandsweets.com/colors/brands/squarespace-com

## Curated palettes containing it

- **Mint Modern** (modern, clean, friendly) — #10b981, #134e4a, #f59e0b, #ffffff, #10231b — Emerald as a primary rather than a success color, anchored by deep teal text — fresh, friendly, and fintech-adjacent. — tool: https://brandsweets.com/palettes/new/10b981-134e4a-f59e0b-ffffff-10231b — collection: https://brandsweets.com/palettes/modern
- **Lagoon** (ocean, vivid, light, summer) — #06b6d4, #14b8a6, #fde68a, #ffffff, #134e4a — Turquoise and teal with a sand-yellow on white — shallow tropical water; the deep teal text is the reef. — tool: https://brandsweets.com/palettes/new/06b6d4-14b8a6-fde68a-ffffff-134e4a — collection: https://brandsweets.com/palettes/ocean

## 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/1d4949-a2bbbe-d45994-1f272d-e9f1ed?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: "#1d4949" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.