# #153441

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

## Values

- Hex: `#153441`
- RGB: rgb(21, 52, 65)
- HSL: hsl(198, 51%, 17%)
- OKLCH: oklch(0.308 0.043 228.1)
- Relative luminance: 0.03
- Nearest named color: Blue Whale (#1e3442, Δ 1.037) — https://brandsweets.com/colors/blue-whale
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/153441

## Tints & shades

- Tints (toward white): #1f4d60, #29657f, #337e9e, #3d96bd, #5daacb, #7cbad5, #9bcadf, #badae9, #d8ebf3, #f7fbfd
- Shades (toward black): #14313e, #112b36, #102832, #0f252e, #0e222a, #0b1c23, #0a191f, #09151b, #060f13, #050c0f

## Harmonies

- Complementary: #412315
- Analogous: #154139, #151e41
- Triadic: #411534, #344115
- Split-complementary: #41151e, #413915
- Tetradic: #391541, #412315, #1e4115

## Colors that go with #153441

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

- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #153441'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), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Loom (https://brandsweets.com/colors/brands/loom-com), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/royalblue
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #153441: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: IHG (https://brandsweets.com/colors/brands/ihg-com), Harvest (https://brandsweets.com/palettes/warm#harvest), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/rust
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #153441 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), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #153441'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), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #153441 in 9 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] — 17 real palettes, including Minecraft's brand system and Headspace's brand system put Blue beside #153441, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Headspace (https://brandsweets.com/colors/brands/headspace-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #153441, 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 #153441: 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): 13.13:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.6:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #337e9e (4.62:1); AA: background → #999999 (4.61:1); AAA: text → #4aa0c4 (7.12:1); AAA: background → #bfbfbf (7.14:1)

## Brands using this color

- **UEFA** — secondary #1a313c (Δ 1.184) — https://brandsweets.com/colors/brands/uefa-com
- **Vimeo** — secondary #23313b (Δ 1.879) — https://brandsweets.com/colors/brands/vimeo-com

## Curated palettes containing it

- **Lido** (summer, vivid, light, playful) — #00a6c7, #ff6b6b, #ffd166, #ffffff, #12303a — Pool blue, watermelon and sun on white — the poolside summer set; the deep teal text keeps it from going juvenile. — tool: https://brandsweets.com/palettes/new/00a6c7-ff6b6b-ffd166-ffffff-12303a — collection: https://brandsweets.com/palettes/summer

## 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/153441-9cb3c4-df4e69-1f232d-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: "#153441" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.