# #151f28

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

## Values

- Hex: `#151f28`
- RGB: rgb(21, 31, 40)
- HSL: hsl(208, 31%, 12%)
- OKLCH: oklch(0.234 0.023 246.1)
- Relative luminance: 0.0129
- Nearest named color: Sunken Ship (#10252a, Δ 2.138) — https://brandsweets.com/colors/sunken-ship
- Moods: cool, muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/151f28

## Tints & shades

- Tints (toward white): #253746, #334b61, #43637f, #51789a, #698fb0, #87a5c0, #a1b9ce, #c0d0de, #dae4ec, #f8fafb
- Shades (toward black): #131d25, #121a21, #121a21, #10171e, #0e151b, #0c1217, #0b1014, #0b1014, #090d11, #070a0d

## Harmonies

- Complementary: #281e15
- Analogous: #152827, #151628
- Triadic: #28151f, #1f2815
- Split-complementary: #281516, #282715
- Tetradic: #271528, #281e15, #162815

## Colors that go with #151f28

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 #151f28 without the hard edge of pure #000. Seen in: Audi (https://brandsweets.com/colors/brands/audi-com), Asana (https://brandsweets.com/colors/brands/asana-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #151f28 in 18 real palettes, including Google's brand system and Wikipedia's brand system, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 23 real palettes, including Bumble's brand system and Signal's brand system put Blue beside #151f28, as the supporting colour. Seen in: Bumble (https://brandsweets.com/colors/brands/bumble-com), Signal (https://brandsweets.com/colors/brands/signal-org), Rolex (https://brandsweets.com/colors/brands/rolex-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #151f28 in 10 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com). — https://brandsweets.com/colors/blueviolet
- **Blush Pink** #e8b4b8 [pool] — 6 real palettes, including Graphite Mono and Estate put Blush Pink beside #151f28, as the accent. Seen in: Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Estate (https://brandsweets.com/palettes/luxury#estate), Cartier (https://brandsweets.com/colors/brands/cartier-com), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including Woodsmoke and Typewriter put Brown beside #151f28, as the accent. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Garnet (https://brandsweets.com/palettes/warm#garnet). — 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 #151f28, as the accent. Seen in: Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-com), Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Candlelight (https://brandsweets.com/palettes/warm#candlelight), Rare Beauty (https://brandsweets.com/colors/brands/rarebeauty-com). — https://brandsweets.com/colors/burgundy
- **Burlywood** #deb887 [pool] — Burlywood is paired with #151f28 in 6 real palettes, including Kiln and Coffee Bar, as the accent. Seen in: Kiln (https://brandsweets.com/palettes/dark#kiln), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/burlywood

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

- On white (#ffffff): 16.69:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.26:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #51789a (4.5:1); AA: background → #858585 (4.52:1); AAA: text → #7699b7 (7.01:1); AAA: background → #a8a8a8 (7.02:1)

## Brands using this color

- **Box** — text #151f26 (Δ 0.398) — https://brandsweets.com/colors/brands/box-com
- **NFL** — accent #172029 (Δ 0.523) — https://brandsweets.com/colors/brands/nfl-com
- **Airtable** — accent #181d26 (Δ 0.796) — https://brandsweets.com/colors/brands/airtable-com
- **Audi** — secondary #181d25 (Δ 0.85) — https://brandsweets.com/colors/brands/audi-com
- **Asana** — secondary #151b26 (Δ 1.416) — https://brandsweets.com/colors/brands/asana-com
- **Formula 1** — text #1c1c25 (Δ 1.46) — https://brandsweets.com/colors/brands/formula1-com
- **WhatsApp** — primary #1c1e21 (Δ 1.632) — https://brandsweets.com/colors/brands/whatsapp-com
- **WhatsApp** — text #1c1e21 (Δ 1.632) — https://brandsweets.com/colors/brands/whatsapp-com
- **Nokia** — text #1d1e20 (Δ 1.877) — https://brandsweets.com/colors/brands/nokia-com
- **Qatar Airways** — primary #1f212b (Δ 1.973) — https://brandsweets.com/colors/brands/qatarairways-com
- **Qatar Airways** — text #1f212b (Δ 1.973) — https://brandsweets.com/colors/brands/qatarairways-com

## Curated palettes containing it

- **Alpine** (cool, clean, light) — #1f6f8b, #7fa2b6, #e76f51, #f5f8fa, #15222e — Glacier blue with a safety-orange accent: technical outdoor gear, not lifestyle. — tool: https://brandsweets.com/palettes/new/1f6f8b-7fa2b6-e76f51-f5f8fa-15222e — collection: https://brandsweets.com/palettes/cool

## Fonts for this mood

- 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/151f28-9cadc4-df4e51-1f212d-e9f1f1?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: "#151f28" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.