# #15040b

A color — warm, vivid, dark, playful, bold, luxury. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#15040b`
- RGB: rgb(21, 4, 11)
- HSL: hsl(335, 68%, 5%)
- OKLCH: oklch(0.144 0.036 353.7)
- Relative luminance: 0.0027
- Nearest named color: Noir Fiction (#150811, Δ 1.853) — https://brandsweets.com/colors/noir-fiction
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/15040b

## Tints & shades

- Tints (toward white): #3c0b20, #671436, #8d1b4b, #b4225f, #d83177, #df5890, #e77eaa, #eea5c3, #f6d0e0, #fdf6f9
- Shades (toward black): #15040b, #15040b, #15040b, #15040b, #15040b, #110309, #110309, #110309, #110309, #110309

## Harmonies

- Complementary: #04150e
- Analogous: #150414, #150604
- Triadic: #0b1504, #040b15
- Split-complementary: #041506, #041415
- Tetradic: #141504, #04150e, #060415

## Colors that go with #15040b

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 body-text near-black for #15040b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Rust** #b7410e [harmony, pool: analogous] — Rust is #15040b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Garnet (https://brandsweets.com/palettes/warm#garnet), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Semrush (https://brandsweets.com/colors/brands/semrush-com), Wayfair (https://brandsweets.com/colors/brands/wayfair-com). — https://brandsweets.com/colors/rust
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #15040b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Asana (https://brandsweets.com/colors/brands/asana-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Kia (https://brandsweets.com/colors/brands/kia-com). — https://brandsweets.com/colors/seagreen
- **Steel Blue** #4682b4 [harmony, pool: triadic] — Steel Blue completes a triad with #15040b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Olympics (https://brandsweets.com/colors/brands/olympics-com), American Express (https://brandsweets.com/colors/brands/americanexpress-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #15040b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Redfin (https://brandsweets.com/colors/brands/redfin-com), Perplexity (https://brandsweets.com/colors/brands/perplexity), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #15040b in 16 real palettes, including Ember and Ahrefs's brand system, as the accent. Seen in: Ember (https://brandsweets.com/palettes/bold#ember), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 18 real palettes, including Pfizer's brand system and Robinhood's brand system put Blue beside #15040b, as the supporting colour. Seen in: Pfizer (https://brandsweets.com/colors/brands/pfizer-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #15040b in 10 real palettes, including Circuit and Gemstone, as the lead colour. Seen in: Circuit (https://brandsweets.com/palettes/technical#circuit), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Render (https://brandsweets.com/colors/brands/render-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv). — https://brandsweets.com/colors/blueviolet

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

- On white (#ffffff): 19.92:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.05:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #d72d74 (4.52:1); AA: background → #787878 (4.51:1); AAA: text → #e472a1 (7.22:1); AAA: background → #9c9c9c (7.26:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold
- luxury: https://brandsweets.com/fonts/mood/luxury

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/15040b-c49ca8-62cb6d-2d201f-f1e9f0?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: "#15040b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.