# #213945

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

## Values

- Hex: `#213945`
- RGB: rgb(33, 57, 69)
- HSL: hsl(200, 35%, 20%)
- OKLCH: oklch(0.33 0.037 231.1)
- Relative luminance: 0.0368
- Nearest named color: Astral Nomad (#203943, Δ 0.399) — https://brandsweets.com/colors/astral-nomad
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/213945

## Tints & shades

- Tints (toward white): #2e5060, #3c677c, #477a94, #5691ae, #72a3bb, #8db5c8, #a9c7d6, #c1d6e1, #dde8ee, #f8fafc
- Shades (toward black): #1e333e, #1c303b, #192b34, #172830, #142229, #111c22, #0f1a1f, #0c1418, #0a1115, #070b0e

## Harmonies

- Complementary: #452d21
- Analogous: #21453f, #212745
- Triadic: #452139, #394521
- Split-complementary: #452127, #453f21
- Tetradic: #3f2145, #452d21, #274521

## Colors that go with #213945

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: triadic] — Dark Olive Green completes a triad with #213945 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth). — https://brandsweets.com/colors/darkolivegreen
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #213945's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Disney (https://brandsweets.com/colors/brands/disney-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/royalblue
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #213945 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Harvest (https://brandsweets.com/palettes/warm#harvest), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #213945'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), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #213945 in 6 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] — 14 real palettes, including Minecraft's brand system and Jeep's brand system put Blue beside #213945, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Jeep (https://brandsweets.com/colors/brands/jeep-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), 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 #213945, 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), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #213945: 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): 12.1:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.74:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #497d97 (4.66:1); AA: background → #9e9e9e (4.52:1); AAA: text → #689cb6 (7.02:1); AAA: background → #c7c7c7 (7.16:1)

## Brands using this color

- **Boeing** — primary #253746 (Δ 0.871) — https://brandsweets.com/colors/brands/boeing-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/213945-9cb2c4-df4e64-1f232d-e9f1f0?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: "#213945" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.