# #1b371c

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

## Values

- Hex: `#1b371c`
- RGB: rgb(27, 55, 28)
- HSL: hsl(122, 34%, 16%)
- OKLCH: oklch(0.306 0.058 144.7)
- Relative luminance: 0.0305
- Nearest named color: Darkest Forest (#223311, Δ 1.675) — https://brandsweets.com/colors/darkest-forest
- Moods: muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/1b371c

## Tints & shades

- Tints (toward white): #28522a, #366d38, #458c47, #52a755, #6cb76f, #87c489, #a3d2a4, #c1e1c3, #ddeedd, #f8fcf8
- Shades (toward black): #19331a, #183018, #142915, #132613, #112211, #0f1f10, #0d1b0e, #0a150a, #081109, #070e07

## Harmonies

- Complementary: #371b36
- Analogous: #28371b, #1b372a
- Triadic: #1c1b37, #371c1b
- Split-complementary: #2a1b37, #371b28
- Tetradic: #1b2837, #371b36, #372a1b

## Colors that go with #1b371c

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

- **Dark Olive Green** #556b2f [harmony, pool: analogous] — Dark Olive Green is #1b371c's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/darkolivegreen
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #1b371c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Loom (https://brandsweets.com/colors/brands/loom-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Chevrolet (https://brandsweets.com/colors/brands/chevrolet-com). — https://brandsweets.com/colors/royalblue
- **Rust** #b7410e [harmony, pool: triadic] — Rust completes a triad with #1b371c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Harvest (https://brandsweets.com/palettes/warm#harvest), IHG (https://brandsweets.com/colors/brands/ihg-com), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/rust
- **Teal** #008080 [harmony, pool: analogous] — Teal is #1b371c'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 #1b371c 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] — 13 real palettes, including Instacart's brand system and Minecraft's brand system put Blue beside #1b371c, 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), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #1b371c, 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
- **Cream** #fffdd0 [role] — Cream is the surface #1b371c wants: a warm off-white that shares its undertone, so #1b371c reads softer on it than on pure white. — https://brandsweets.com/colors/cream

## 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 → #428544 (4.67:1); AA: background → #999999 (4.58:1); AAA: text → #52a755 (7.02:1); AAA: background → #bfbfbf (7.09:1)

## Brands using this color

- **WhatsApp** — secondary #103928 (Δ 1.838) — https://brandsweets.com/colors/brands/whatsapp-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/1b371c-a2bea6-9e4edf-1f2d26-edf1e9?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: "#1b371c" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.