# #04181a

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

## Values

- Hex: `#04181a`
- RGB: rgb(4, 24, 26)
- HSL: hsl(185, 73%, 6%)
- OKLCH: oklch(0.193 0.027 203.8)
- Relative luminance: 0.0075
- Nearest named color: Black Stallion (#0e191c, Δ 1.583) — https://brandsweets.com/colors/black-stallion
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/04181a

## Tints & shades

- Tints (toward white): #0a3e42, #11626a, #178b96, #1eb0be, #2bcfde, #53d8e4, #7be1ea, #a7ebf1, #cef4f7, #f6fdfe
- Shades (toward black): #04191a, #04191a, #031516, #031516, #031516, #031516, #031516, #031012, #031012, #031012

## Harmonies

- Complementary: #1a0604
- Analogous: #041a11, #040d1a
- Triadic: #1a0419, #191a04
- Split-complementary: #1a040d, #1a1104
- Tetradic: #11041a, #1a0604, #0d1a04

## Colors that go with #04181a

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 #04181a without the hard edge of pure #000. Seen in: Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Amazon (https://brandsweets.com/colors/brands/amazon-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #04181a in 18 real palettes, including Lemon Squeezy's brand system and Ahrefs's brand system, as the lead colour. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), 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] — 22 real palettes, including MongoDB's brand system and Kia's brand system put Blue beside #04181a, as the accent. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Kia (https://brandsweets.com/colors/brands/kia-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #04181a 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] — 4 real palettes, including Estate and Cartier's brand system put Blush Pink beside #04181a, 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 #04181a, 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 Mailchimp's brand system and Qatar Airways's brand system put Burgundy beside #04181a, as the accent. Seen in: Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-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 #04181a in 5 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): 18.25:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.15:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #16838d (4.67:1); AA: background → #808080 (4.62:1); AAA: text → #1ca8b5 (7.32:1); AAA: background → #a1a1a1 (7.06:1)

## Brands using this color

- **Perplexity** — text #091717 (Δ 0.824) — https://brandsweets.com/colors/brands/perplexity
- **MongoDB** — text #061621 (Δ 1.885) — https://brandsweets.com/colors/brands/mongodb-com
- **Character** — primary #11181c (Δ 1.992) — https://brandsweets.com/colors/brands/character-ai
- **Character** — text #11181c (Δ 1.992) — 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/04181a-a2b8be-df4e88-1f262d-e9f1ee?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: "#04181a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.