# #05181f

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

## Values

- Hex: `#05181f`
- RGB: rgb(5, 24, 31)
- HSL: hsl(196, 72%, 7%)
- OKLCH: oklch(0.197 0.029 224.3)
- Relative luminance: 0.0078
- Nearest named color: Black Stallion (#0e191c, Δ 1.469) — https://brandsweets.com/colors/black-stallion
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/05181f

## Tints & shades

- Tints (toward white): #0b3746, #12556e, #187495, #1f92bd, #31afdd, #58bfe4, #80ceea, #a7ddf1, #cfecf7, #f6fcfe
- Shades (toward black): #05181f, #04141a, #04141a, #04141a, #04141a, #041116, #041116, #041116, #030e12, #030e12

## Harmonies

- Complementary: #1f0c05
- Analogous: #051f19, #050b1f
- Triadic: #1f0518, #181f05
- Split-complementary: #1f050b, #1f1905
- Tetradic: #19051f, #1f0c05, #0b1f05

## Colors that go with #05181f

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 that reads cleanly against #05181f without the hard edge of pure #000. Seen in: Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Asana (https://brandsweets.com/colors/brands/asana-com), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Puma (https://brandsweets.com/colors/brands/puma-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #05181f in 18 real palettes, including Lemon Squeezy's brand system and Blueprint, as the lead colour. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 22 real palettes, including MongoDB's brand system and Monzo's brand system put Blue beside #05181f, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Kia (https://brandsweets.com/colors/brands/kia-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #05181f in 10 real palettes, including Prepare your taste buds...'s brand system and Klarna US's brand system, as the accent. Seen in: Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com), Taco Bell (https://brandsweets.com/colors/brands/tacobell-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com). — https://brandsweets.com/colors/blueviolet
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Estate and Cartier's brand system put Blush Pink beside #05181f, as the accent. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Cartier (https://brandsweets.com/colors/brands/cartier-com), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including State Farm's brand system and Velvet put Brown beside #05181f, as the supporting colour. Seen in: State Farm (https://brandsweets.com/colors/brands/statefarm-com), Velvet (https://brandsweets.com/palettes/luxury#velvet), Garnet (https://brandsweets.com/palettes/warm#garnet), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/brown
- **Burgundy** #800020 [pool] — 4 real palettes, including Qatar Airways's brand system and Mailchimp's brand system put Burgundy beside #05181f, as the accent. Seen in: Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-com), Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Rare Beauty (https://brandsweets.com/colors/brands/rarebeauty-com), Candlelight (https://brandsweets.com/palettes/warm#candlelight). — https://brandsweets.com/colors/burgundy
- **Burlywood** #deb887 [pool] — Burlywood is paired with #05181f in 6 real palettes, including Coffee Bar and Velvet, as the accent. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Velvet (https://brandsweets.com/palettes/luxury#velvet), Kiln (https://brandsweets.com/palettes/dark#kiln), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/burlywood

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

- On white (#ffffff): 18.15:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.16:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1a7ea2 (4.55:1); AA: background → #808080 (4.6:1); AAA: text → #22a4d3 (7.32:1); AAA: background → #a1a1a1 (7.03:1)

## Brands using this color

- **MongoDB** — text #061621 (Δ 0.98) — https://brandsweets.com/colors/brands/mongodb-com
- **Monzo** — text #091723 (Δ 1.17) — https://brandsweets.com/colors/brands/monzo-com
- **Kia** — primary #05141f (Δ 1.574) — https://brandsweets.com/colors/brands/kia-com
- **Kia** — text #05141f (Δ 1.574) — https://brandsweets.com/colors/brands/kia-com
- **Perplexity** — text #091717 (Δ 1.584) — https://brandsweets.com/colors/brands/perplexity
- **Affirm** — text #101820 (Δ 1.602) — https://brandsweets.com/colors/brands/affirm-com
- **Chase** — text #101820 (Δ 1.602) — https://brandsweets.com/colors/brands/chase-com
- **Character** — primary #11181c (Δ 1.765) — https://brandsweets.com/colors/brands/character-ai
- **Character** — text #11181c (Δ 1.765) — https://brandsweets.com/colors/brands/character-ai

## 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/05181f-9cb5c4-df4e6e-1f232d-e9f1ef?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: "#05181f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.