# #66a6ea

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

## Values

- Hex: `#66a6ea`
- RGB: rgb(102, 166, 234)
- HSL: hsl(211, 76%, 66%)
- OKLCH: oklch(0.71 0.12 251.2)
- Relative luminance: 0.3604
- Nearest named color: Cerulean (#55aaee, Δ 1.642) — https://brandsweets.com/colors/cerulean
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/66a6ea

## Tints & shades

- Tints (toward white): #74aeec, #81b6ee, #93c0f0, #a1c8f2, #aed0f4, #bcd8f6, #c9e0f8, #dbeafa, #e9f2fc, #f6fafe
- Shades (toward black): #4b96e7, #3187e3, #1d75d3, #1966b8, #15579d, #124882, #0e3967, #0a2848, #06192d, #020a12

## Harmonies

- Complementary: #eaaa66
- Analogous: #66e8ea, #6966ea
- Triadic: #ea66a6, #a6ea66
- Split-complementary: #ea6966, #e8ea66
- Tetradic: #ea66e8, #eaaa66, #66ea69

## Colors that go with #66a6ea

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 #66a6ea: softer than #000 and cool enough to feel like part of the same palette. Seen in: Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Mercury (https://brandsweets.com/colors/brands/mercury-com). — https://brandsweets.com/colors/charcoal
- **Emerald Green** #50c878 [harmony, pool: triadic] — Emerald Green completes a triad with #66a6ea — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Playground (https://brandsweets.com/palettes/bold#playground), Supabase (https://brandsweets.com/colors/brands/supabase). — https://brandsweets.com/colors/emerald-green
- **Peru** #cd853f [harmony, pool: complementary] — Peru sits directly opposite #66a6ea on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/peru
- **Amber** #ffbf00 [pool] — Amber is paired with #66a6ea in 7 real palettes, including NBA's brand system and Salesforce's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 6 real palettes, including Canva's brand system and Spotify's brand system put Blue beside #66a6ea, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Warp (https://brandsweets.com/colors/brands/warp-dev), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #66a6ea in 5 real palettes, including Learning App and Elastic's brand system, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Elastic (https://brandsweets.com/colors/brands/elastic-co), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), PayPal (https://brandsweets.com/colors/brands/paypal-com). — https://brandsweets.com/colors/darkorange
- **Denim** #1560bd [pool] — Designers have shipped Denim with #66a6ea: 7 real palettes, including Coca-Cola's brand system and Venmo's brand system, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Apple (https://brandsweets.com/colors/brands/apple-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/denim
- **Gold** #ffd700 [pool] — Gold shows up next to #66a6ea in 4 real palettes, including Prime Video's brand system and Miro's brand system, as the lead colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Miro (https://brandsweets.com/colors/brands/miro-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com). — https://brandsweets.com/colors/gold

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

- On white (#ffffff): 2.56:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1d75d3 (4.63:1); AA: background → #383838 (4.58:1); AAA: text → #1659a2 (7.04:1); AAA: background → #171717 (7.01:1)
- On black (#000000): 8.21:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Coca-Cola** — secondary #6aaae4 (Δ 1.656) — https://brandsweets.com/colors/brands/coca-cola-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/66a6ea-9cabc4-df534e-1f202d-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: "#66a6ea" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.