# #183458

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

## Values

- Hex: `#183458`
- RGB: rgb(24, 52, 88)
- HSL: hsl(214, 57%, 22%)
- OKLCH: oklch(0.323 0.073 255.7)
- Relative luminance: 0.0335
- Nearest named color: Beyond the Stars (#0a3251, Δ 1.919) — https://brandsweets.com/colors/beyond-the-stars
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/183458

## Tints & shades

- Tints (toward white): #214778, #295794, #316ab4, #3f7bca, #5f91d3, #7fa7dc, #9bbae4, #bbd0ec, #d7e4f4, #f7fafd
- Shades (toward black): #162f50, #142a48, #132844, #10233c, #0e1f34, #0c1a2c, #0a1524, #091320, #070e18, #040910

## Harmonies

- Complementary: #583c18
- Analogous: #185458, #1c1858
- Triadic: #581834, #345818
- Split-complementary: #581c18, #545818
- Tetradic: #581854, #583c18, #18581c

## Colors that go with #183458

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

- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #183458 — 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 #183458'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), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/teal
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #183458 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 #183458 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 Monzo's brand system put Blue beside #183458, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), 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 #183458, 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
- **Burlywood** #deb887 [pool] — Burlywood is paired with #183458 in 4 real palettes, including Coastal and Polaroid, as the accent. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Polaroid (https://brandsweets.com/palettes/light#polaroid), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/burlywood
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #183458: 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): 12.57:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.67:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3776c8 (4.59:1); AA: background → #9c9c9c (4.58:1); AAA: text → #6b99d6 (7.15:1); AAA: background → #c2c2c2 (7.06:1)

## Brands using this color

- **CeraVe** — secondary #0e3353 (Δ 1.368) — https://brandsweets.com/colors/brands/cerave-com
- **Panasonic** — secondary #0f315f (Δ 1.911) — https://brandsweets.com/colors/brands/panasonic-com

## 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/183458-9ca9c4-df5a4e-1f1f2d-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: "#183458" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.