# #005151

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

## Values

- Hex: `#005151`
- RGB: rgb(0, 81, 81)
- HSL: hsl(180, 100%, 16%)
- OKLCH: oklch(0.394 0.067 194.8)
- Relative luminance: 0.0648
- Nearest named color: Cape Verde (#01554f, Δ 1.512) — https://brandsweets.com/colors/cape-verde
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/005151

## Tints & shades

- Tints (toward white): #007a7a, #00a3a3, #00d1d1, #00fafa, #24ffff, #4dffff, #75ffff, #a3ffff, #ccffff, #f5ffff
- Shades (toward black): #004d4d, #004747, #003d3d, #003838, #003333, #002e2e, #002929, #001f1f, #001919, #001414

## Harmonies

- Complementary: #520000
- Analogous: #005229, #002952
- Triadic: #520052, #525200
- Split-complementary: #520029, #522900
- Tetradic: #290052, #520000, #295200

## Colors that go with #005151

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Crimson** #dc143c [harmony, pool: complementary] — Crimson sits directly opposite #005151 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), MAC Cosmetics (https://brandsweets.com/colors/brands/maccosmetics-com). — https://brandsweets.com/colors/crimson
- **Blue** #0000ff [pool] — 7 real palettes, including Jeep's brand system and Rolex's brand system put Blue beside #005151, as the accent. Seen in: Jeep (https://brandsweets.com/colors/brands/jeep-com), Rolex (https://brandsweets.com/colors/brands/rolex-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #005151: 9 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/denim
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #005151 in 6 real palettes, including Neon's brand system and Chime's brand system, as the lead colour. Seen in: Neon (https://brandsweets.com/colors/brands/neon-tech), Chime (https://brandsweets.com/colors/brands/chime-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/emerald-green
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #005151 in 4 real palettes, including Lagoon and N26's brand system, as the lead colour. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), N26 (https://brandsweets.com/colors/brands/n26-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/lightseagreen
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Microsoft's brand system and Plaid's brand system put Midnight Blue beside #005151, as the accent. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), CeraVe (https://brandsweets.com/colors/brands/cerave-com). — https://brandsweets.com/colors/midnightblue
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #005151 in 4 real palettes, including HubSpot's brand system and Neon's brand system, as the supporting colour. Seen in: HubSpot (https://brandsweets.com/colors/brands/hubspot-com), Neon (https://brandsweets.com/colors/brands/neon-tech), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Audi (https://brandsweets.com/colors/brands/audi-com). — https://brandsweets.com/colors/orangered
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #005151: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 9.15:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.3:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #008585 (4.69:1); AA: background → #b8b8b8 (4.61:1); AAA: text → #00a8a8 (7.17:1); AAA: background → #e3e3e3 (7.13:1)

## Brands using this color

- **Gusto** — accent #00535c (Δ 1.848) — https://brandsweets.com/colors/brands/gusto-com

## Curated palettes containing it

- **Mint Modern** (modern, clean, friendly) — #10b981, #134e4a, #f59e0b, #ffffff, #10231b — Emerald as a primary rather than a success color, anchored by deep teal text — fresh, friendly, and fintech-adjacent. — tool: https://brandsweets.com/palettes/new/10b981-134e4a-f59e0b-ffffff-10231b — collection: https://brandsweets.com/palettes/modern
- **Lagoon** (ocean, vivid, light, summer) — #06b6d4, #14b8a6, #fde68a, #ffffff, #134e4a — Turquoise and teal with a sand-yellow on white — shallow tropical water; the deep teal text is the reef. — tool: https://brandsweets.com/palettes/new/06b6d4-14b8a6-fde68a-ffffff-134e4a — collection: https://brandsweets.com/palettes/ocean

## 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/005151-a2bbbe-d45994-1f272d-e9f1ed?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: "#005151" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.