# #11b5bb

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

## Values

- Hex: `#11b5bb`
- RGB: rgb(17, 181, 187)
- HSL: hsl(182, 83%, 40%)
- OKLCH: oklch(0.703 0.117 199.1)
- Relative luminance: 0.3675
- Nearest named color: lightseagreen (#20b2aa, Δ 2.393) — https://brandsweets.com/colors/lightseagreen
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/11b5bb

## Tints & shades

- Tints (toward white): #14d0d7, #1fe3ea, #36e6ec, #52eaef, #6eedf2, #8af1f4, #a6f4f7, #bef7f9, #dafafc, #f6fefe
- Shades (toward black): #10a3a8, #0e959a, #0d8387, #0b7679, #0a6467, #085154, #074446, #053233, #032425, #021213

## Harmonies

- Complementary: #bb1711
- Analogous: #11bb6c, #1160bb
- Triadic: #bb11b5, #b5bb11
- Split-complementary: #bb1160, #bb6c11
- Tetradic: #6c11bb, #bb1711, #60bb11

## Colors that go with #11b5bb

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 for #11b5bb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), N26 (https://brandsweets.com/colors/brands/n26-com), Lido (https://brandsweets.com/palettes/vivid#lido), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #11b5bb: 7 real palettes, including Coca-Cola's brand system and Open House, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Open House (https://brandsweets.com/palettes/clean#open-house), Gopro (https://brandsweets.com/colors/brands/gopro-com), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #11b5bb: 4 real palettes, including Unity's brand system and Patreon's brand system, as the lead colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Patreon (https://brandsweets.com/colors/brands/patreon-com), Figma (https://brandsweets.com/colors/brands/figma), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Confluent's brand system and Ford's brand system put Midnight Blue beside #11b5bb, as the lead colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Ford (https://brandsweets.com/colors/brands/ford-com), SoFi (https://brandsweets.com/colors/brands/sofi-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Lido and Crayon Box put Mustard Yellow beside #11b5bb, as the accent. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Diner (https://brandsweets.com/palettes/vivid#diner), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard
- **Orange** #ffa500 [pool] — 4 real palettes, including Mint Modern and Gopro's brand system put Orange beside #11b5bb, as the accent. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Gopro (https://brandsweets.com/colors/brands/gopro-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Graphite (https://brandsweets.com/palettes/technical#graphite). — https://brandsweets.com/colors/orange
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #11b5bb in 4 real palettes, including Cursor's brand system and Figma's brand system, as the lead colour. Seen in: Cursor (https://brandsweets.com/colors/brands/cursor-com), Figma (https://brandsweets.com/colors/brands/figma), Launch Orange (https://brandsweets.com/palettes/bold#launch-orange), Neon (https://brandsweets.com/colors/brands/neon-tech). — https://brandsweets.com/colors/orangered
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #11b5bb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/lightcoral

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

- On white (#ffffff): 2.51:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0d8387 (4.55:1); AA: background → #383838 (4.66:1); AAA: text → #095f62 (7.43:1); AAA: background → #171717 (7.13:1)
- On black (#000000): 8.35:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Netlify** — primary #04bcbc (Δ 1.996) — https://brandsweets.com/colors/brands/netlify-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/11b5bb-a2babe-d45990-1f272d-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: "#11b5bb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.