# #0b3828

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

## Values

- Hex: `#0b3828`
- RGB: rgb(11, 56, 40)
- HSL: hsl(159, 67%, 13%)
- OKLCH: oklch(0.306 0.056 165)
- Relative luminance: 0.0305
- Nearest named color: Pitch-Black Forests (#003322, Δ 2.159) — https://brandsweets.com/colors/pitch-black-forests
- Moods: vivid, dark, luxury, bold
- Page: https://brandsweets.com/colors/0b3828

## Tints & shades

- Tints (toward white): #135e43, #19805c, #21a677, #28c890, #44daa5, #66e1b6, #8ce8c8, #aeefd8, #d4f7eb, #f6fdfb
- Shades (toward black): #0a3325, #092f22, #082b1f, #08261c, #08261c, #072219, #061e15, #051a12, #04150f, #03110c

## Harmonies

- Complementary: #370b1a
- Analogous: #0b3712, #0b3137
- Triadic: #280b37, #37280b
- Split-complementary: #370b31, #37120b
- Tetradic: #120b37, #370b1a, #31370b

## Colors that go with #0b3828

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: split] — Crimson is a split-complement of #0b3828: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Vodafone (https://brandsweets.com/colors/brands/vodafone-com), Svelte (https://brandsweets.com/colors/brands/svelte-dev), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/crimson
- **Rust** #b7410e [harmony, pool: triadic] — Rust completes a triad with #0b3828 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: IHG (https://brandsweets.com/colors/brands/ihg-com), Harvest (https://brandsweets.com/palettes/warm#harvest), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/rust
- **Slate Blue** #6a5acd [harmony, pool: triadic] — Slate Blue completes a triad with #0b3828 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Superhuman (https://brandsweets.com/colors/brands/superhuman-com), GitLab (https://brandsweets.com/colors/brands/gitlab), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #0b3828'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), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Alpine (https://brandsweets.com/palettes/cool#alpine), Saffron (https://brandsweets.com/palettes/warm#saffron). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #0b3828 in 7 real palettes, including McDonald's's brand system and Beach Hut, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Instacart's brand system and Minecraft's brand system put Blue beside #0b3828, as the accent. Seen in: Instacart (https://brandsweets.com/colors/brands/instacart-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Headspace (https://brandsweets.com/colors/brands/headspace-com), Jeep (https://brandsweets.com/colors/brands/jeep-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #0b3828, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Blush (https://brandsweets.com/palettes/light#blush), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/blush-pink
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #0b3828: 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): 13.04:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.61:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1a845f (4.51:1); AA: background → #999999 (4.58:1); AAA: text → #22aa7b (7.1:1); AAA: background → #bfbfbf (7.09:1)

## Brands using this color

- **WhatsApp** — secondary #103928 (Δ 0.546) — https://brandsweets.com/colors/brands/whatsapp-com
- **Instacart** — primary #043b2b (Δ 1.015) — https://brandsweets.com/colors/brands/instacart-com
- **Retool** — secondary #0e352c (Δ 1.489) — https://brandsweets.com/colors/brands/retool-com

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/0b3828-a2beb8-d459c0-1f2c2d-e9f1eb?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: "#0b3828" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.