# #05152e

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

## Values

- Hex: `#05152e`
- RGB: rgb(5, 21, 46)
- HSL: hsl(217, 80%, 10%)
- OKLCH: oklch(0.198 0.055 258.2)
- Relative luminance: 0.0077
- Nearest named color: Infinite Night (#071037, Δ 2.48) — https://brandsweets.com/colors/infinite-night
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/05152e

## Tints & shades

- Tints (toward white): #0a2757, #0e3a81, #124ba5, #175dcf, #2c74e8, #558fec, #7eaaf1, #a3c2f5, #cddef9, #f6f9fe
- Shades (toward black): #051329, #051329, #041125, #041125, #040f20, #030c1c, #030c1c, #030a17, #030a17, #020812

## Harmonies

- Complementary: #2e1e05
- Analogous: #05292e, #0a052e
- Triadic: #2e0515, #152e05
- Split-complementary: #2e0a05, #292e05
- Tetradic: #2e0529, #2e1e05, #052e0a

## Colors that go with #05152e

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #05152e: softer than #000 and cool enough to feel like part of the same palette. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Audi (https://brandsweets.com/colors/brands/audi-com), PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com). — https://brandsweets.com/colors/charcoal
- **Firebrick** #b22222 [harmony, pool: triadic] — Firebrick completes a triad with #05152e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Twilio (https://brandsweets.com/colors/brands/twilio-com), MLB (https://brandsweets.com/colors/brands/mlb-com), Fireside (https://brandsweets.com/palettes/dark#fireside), Bose (https://brandsweets.com/colors/brands/bose-com). — https://brandsweets.com/colors/firebrick
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #05152e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Kia (https://brandsweets.com/colors/brands/kia-com), Asana (https://brandsweets.com/colors/brands/asana-com), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #05152e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Oatly (https://brandsweets.com/colors/brands/oatly-com), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #05152e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Sentry (https://brandsweets.com/colors/brands/sentry-io), Calm (https://brandsweets.com/colors/brands/calm-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #05152e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Clinic (https://brandsweets.com/palettes/clean#clinic), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Perplexity (https://brandsweets.com/colors/brands/perplexity), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #05152e in 18 real palettes, including Blueprint and Southwest Airlines's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 21 real palettes, including League of Legends's brand system and Monzo's brand system put Blue beside #05152e, as the supporting colour. Seen in: League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Kia (https://brandsweets.com/colors/brands/kia-com). — https://brandsweets.com/colors/blue

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 18.21:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.15:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2771e7 (4.6:1); AA: background → #808080 (4.61:1); AAA: text → #6398ee (7.26:1); AAA: background → #a1a1a1 (7.05:1)

## Brands using this color

- **Cisco** — primary #07182d (Δ 1.199) — https://brandsweets.com/colors/brands/cisco-com
- **Cisco** — text #07182d (Δ 1.199) — https://brandsweets.com/colors/brands/cisco-com
- **League of Legends** — primary #0a1428 (Δ 1.322) — https://brandsweets.com/colors/brands/leagueoflegends-com
- **League of Legends** — text #0a1428 (Δ 1.322) — https://brandsweets.com/colors/brands/leagueoflegends-com

## Curated palettes containing it

- **Blueprint** (technical, cool, modern, dark) — #38bdf8, #818cf8, #fbbf24, #0f172a, #e2e8f0 — Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'. — tool: https://brandsweets.com/palettes/new/38bdf8-818cf8-fbbf24-0f172a-e2e8f0 — collection: https://brandsweets.com/palettes/technical
- **Slate Workspace** (minimal, cool, clean, modern) — #0f172a, #64748b, #2563eb, #f8fafc — Slate on slate with a single blue — the productivity-app look where the interface disappears behind the work. — tool: https://brandsweets.com/palettes/new/0f172a-64748b-2563eb-f8fafc — collection: https://brandsweets.com/palettes/minimal
- **Clinic** (clean, cool, light) — #0e7490, #64748b, #f97316, #f8fafc, #0f172a — Teal reads clinical without the coldness of pure blue; the coral accent adds warmth for reassurance moments. — tool: https://brandsweets.com/palettes/new/0e7490-64748b-f97316-f8fafc-0f172a — collection: https://brandsweets.com/palettes/clean

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- 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/05152e-9ca7c4-df624e-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: "#05152e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.