# #151c29

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

## Values

- Hex: `#151c29`
- RGB: rgb(21, 28, 41)
- HSL: hsl(219, 32%, 12%)
- OKLCH: oklch(0.226 0.028 262.5)
- Relative luminance: 0.0115
- Nearest named color: Dark Knight (#151931, Δ 2.117) — https://brandsweets.com/colors/dark-knight
- Moods: cool, muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/151c29

## Tints & shades

- Tints (toward white): #243047, #324362, #425880, #506a9b, #6881b1, #869ac1, #a1b1ce, #bfcade, #dae0ec, #f8f9fc
- Shades (toward black): #131925, #111722, #111722, #10151e, #0e121b, #0c1018, #0a0e14, #0a0e14, #090c11, #07090d

## Harmonies

- Complementary: #282215
- Analogous: #152528, #181528
- Triadic: #28151c, #1c2815
- Split-complementary: #281815, #252815
- Tetradic: #281525, #282215, #152818

## Colors that go with #151c29

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 #151c29 without the hard edge of pure #000. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Audi (https://brandsweets.com/colors/brands/audi-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #151c29 in 18 real palettes, including Blueprint and Warner Bros.'s brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 23 real palettes, including Warp's brand system and Signal's brand system put Blue beside #151c29, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Signal (https://brandsweets.com/colors/brands/signal-org), Monzo (https://brandsweets.com/colors/brands/monzo-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #151c29 in 10 real palettes, including Yahoo's brand system and ClickUp's brand system, as the supporting colour. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), ClickUp (https://brandsweets.com/colors/brands/clickup-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] — 5 real palettes, including Graphite Mono and Estate put Blush Pink beside #151c29, 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 State Farm's brand system put Brown beside #151c29, as the accent. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Garnet (https://brandsweets.com/palettes/warm#garnet), Typewriter (https://brandsweets.com/palettes/editorial#typewriter). — 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 #151c29, 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 #151c29 in 6 real palettes, including Coffee Bar and Kiln, as the accent. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Kiln (https://brandsweets.com/palettes/dark#kiln), Coastal (https://brandsweets.com/palettes/cool#coastal), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/burlywood

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

- On white (#ffffff): 17.07:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.23:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5a76aa (4.61:1); AA: background → #858585 (4.63:1); AAA: text → #8298bf (7.19:1); AAA: background → #a6a6a6 (7.01:1)

## Brands using this color

- **Asana** — secondary #151b26 (Δ 0.611) — https://brandsweets.com/colors/brands/asana-com
- **Airtable** — accent #181d26 (Δ 0.931) — https://brandsweets.com/colors/brands/airtable-com
- **Audi** — secondary #181d25 (Δ 1.082) — https://brandsweets.com/colors/brands/audi-com
- **Box** — text #151f26 (Δ 1.405) — https://brandsweets.com/colors/brands/box-com
- **Formula 1** — text #1c1c25 (Δ 1.408) — https://brandsweets.com/colors/brands/formula1-com
- **Qatar Airways** — secondary #181825 (Δ 1.459) — https://brandsweets.com/colors/brands/qatarairways-com
- **NFL** — accent #172029 (Δ 1.543) — https://brandsweets.com/colors/brands/nfl-com
- **Vimeo** — text #141a20 (Δ 1.782) — https://brandsweets.com/colors/brands/vimeo-com

## Curated palettes containing it

- **Indigo SaaS** (modern, cool, clean) — #4f46e5, #6b7280, #10b981, #ffffff, #111827 — The dependable indigo-and-emerald B2B pairing: indigo for primary actions, emerald reserved for success states. — tool: https://brandsweets.com/palettes/new/4f46e5-6b7280-10b981-ffffff-111827 — collection: https://brandsweets.com/palettes/modern
- **Arctic** (clean, cool, minimal) — #0f1b2d, #7d93a8, #0ea5e9, #ffffff — Navy type on white with an ice-blue accent: crisp and corporate without going grey. — tool: https://brandsweets.com/palettes/new/0f1b2d-7d93a8-0ea5e9-ffffff — collection: https://brandsweets.com/palettes/clean
- **Cobalt Pop** (bold, cool, vivid, modern) — #1e40af, #111827, #fb7185, #ffffff — One deep cobalt and one hot pink on white — a two-accent system for launches and campaign pages that need punch. — tool: https://brandsweets.com/palettes/new/1e40af-111827-fb7185-ffffff — collection: https://brandsweets.com/palettes/bold
- **Fireside** (winter, dark, warm, luxury) — #b23a3a, #2f5d50, #d4a857, #171a1f, #f2ede4 — Cranberry, pine and brass on a charcoal night — the holiday palette without the clichés, because the surface is cold. — tool: https://brandsweets.com/palettes/new/b23a3a-2f5d50-d4a857-171a1f-f2ede4 — collection: https://brandsweets.com/palettes/winter
- **Sapphire & Gold** (jewel-tones, luxury, cool, elegant) — #1e3a8a, #c9a227, #0e7490, #f7f6f2, #111827 — Deep sapphire and gold with a teal — old-money jewel tones on an ivory ground; heraldic without a crest. — tool: https://brandsweets.com/palettes/new/1e3a8a-c9a227-0e7490-f7f6f2-111827 — collection: https://brandsweets.com/palettes/jewel-tones
- **Peacock** (jewel-tones, vivid, cool, bold) — #0d9488, #1d4ed8, #a21caf, #ffffff, #0c1a2b — Teal, cobalt and magenta at full chroma on white — jewel tones in daylight; the trick is a near-black text with a blue cast. — tool: https://brandsweets.com/palettes/new/0d9488-1d4ed8-a21caf-ffffff-0c1a2b — collection: https://brandsweets.com/palettes/jewel-tones

## 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/151c29-9ca5c4-df664e-211f2d-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: "#151c29" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.