# #066ca7

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

## Values

- Hex: `#066ca7`
- RGB: rgb(6, 108, 167)
- HSL: hsl(202, 93%, 34%)
- OKLCH: oklch(0.511 0.123 243.6)
- Relative luminance: 0.1355
- Nearest named color: Brilliant Blue (#0075b3, Δ 2.931) — https://brandsweets.com/colors/brilliant-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/066ca7

## Tints & shades

- Tints (toward white): #077fc5, #0896e7, #18a5f7, #3ab2f8, #58bef9, #75c9fa, #98d7fb, #b5e2fc, #d8f0fe, #f5fbff
- Shades (toward black): #066399, #05598a, #04507b, #04466c, #033c5e, #03334f, #022940, #022031, #011622, #010d14

## Harmonies

- Complementary: #a74106
- Analogous: #06a792, #061ca7
- Triadic: #a7066c, #6ca706
- Split-complementary: #a7061c, #a79206
- Tetradic: #9206a7, #a74106, #1ca706

## Colors that go with #066ca7

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 #066ca7: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #066ca7's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), Motorola (https://brandsweets.com/colors/brands/motorola-com), Guinness (https://brandsweets.com/colors/brands/guinness-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/royalblue
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #066ca7 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #066ca7 in 8 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Wired (https://brandsweets.com/colors/brands/wired-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #066ca7, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #066ca7: 8 real palettes, including Glacier and General Mills's brand system, as the accent. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #066ca7: 4 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the supporting colour. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), NBA (https://brandsweets.com/colors/brands/nba-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #066ca7 in 17 real palettes, including McDonald's's brand system and State Farm's brand system, as the supporting colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 5.66:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #055c8f (7.16:1)
- On black (#000000): 3.71:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #077cc0 (4.65:1); AA: background → #e6e6e6 (4.53:1); AAA: text → #099cf1 (7.04:1)

## Brands using this color

- **McDonald's** — accent #006bae (Δ 1.216) — https://brandsweets.com/colors/brands/mcdonalds-com
- **Activision** — secondary #0768af (Δ 1.883) — https://brandsweets.com/colors/brands/activision-com
- **Discover** — secondary #1e71ac (Δ 1.923) — https://brandsweets.com/colors/brands/discover-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/066ca7-9cb1c4-df4e5f-1f222d-e9f1f0?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: "#066ca7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.