# #213554

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

## Values

- Hex: `#213554`
- RGB: rgb(33, 53, 84)
- HSL: hsl(216, 44%, 23%)
- OKLCH: oklch(0.328 0.061 258.9)
- Relative luminance: 0.0351
- Nearest named color: Beyond the Stars (#0a3251, Δ 2.638) — https://brandsweets.com/colors/beyond-the-stars
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/213554

## Tints & shades

- Tints (toward white): #2c4872, #36588c, #426ba9, #527dbc, #7093c7, #89a6d1, #a7bcdd, #c1d0e7, #dee6f2, #f8f9fc
- Shades (toward black): #1e314d, #1b2c46, #18283e, #152337, #142133, #111c2c, #0e1725, #0b131d, #090e16, #06090f

## Harmonies

- Complementary: #544021
- Analogous: #214f54, #262154
- Triadic: #542135, #355421
- Split-complementary: #542621, #4f5421
- Tetradic: #54214f, #544021, #215426

## Colors that go with #213554

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: split] — Dark Olive Green is a split-complement of #213554: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth). — https://brandsweets.com/colors/darkolivegreen
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #213554 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Mushroom (https://brandsweets.com/palettes/neutral#mushroom). — https://brandsweets.com/colors/seagreen
- **Teal** #008080 [harmony, pool: analogous] — Teal is #213554's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Stanley (https://brandsweets.com/colors/brands/stanley1913-com), N26 (https://brandsweets.com/colors/brands/n26-com), Alpine (https://brandsweets.com/palettes/cool#alpine), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #213554 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). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #213554 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), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Alaska Airlines's brand system and Minecraft's brand system put Blue beside #213554, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Jeep (https://brandsweets.com/colors/brands/jeep-com), Sketch (https://brandsweets.com/colors/brands/sketch-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #213554, 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 #213554: 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): 12.34:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.7:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4b77b9 (4.64:1); AA: background → #9e9e9e (4.61:1); AAA: text → #7798ca (7.13:1); AAA: background → #c4c4c4 (7.07:1)

## Curated palettes containing it

- **Frost & Ember** (winter, bold, cool, vivid) — #1d3557, #a8dadc, #e63946, #f1faee — Navy and frost with one ember red — the classic cold-with-a-warm-accent structure, borrowed from a thousand ski posters. — tool: https://brandsweets.com/palettes/new/1d3557-a8dadc-e63946-f1faee — collection: https://brandsweets.com/palettes/winter

## 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/213554-9ca7c4-df5f4e-201f2d-e9f0f1?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: "#213554" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.