# #266ca6

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

## Values

- Hex: `#266ca6`
- RGB: rgb(38, 108, 166)
- HSL: hsl(207, 63%, 40%)
- OKLCH: oklch(0.517 0.115 247.6)
- Relative luminance: 0.1389
- Nearest named color: Brilliant Blue (#0075b3, Δ 2.953) — https://brandsweets.com/colors/brilliant-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/266ca6

## Tints & shades

- Tints (toward white): #2b7dbf, #378cd2, #4c98d6, #65a7dc, #7eb5e2, #97c3e7, #b0d2ed, #c5def2, #deecf7, #f7fafd
- Shades (toward black): #226296, #1f5989, #1b4f79, #19466c, #153c5b, #11314b, #0e293e, #0a1e2e, #081621, #040b11

## Harmonies

- Complementary: #a66026
- Analogous: #26a6a0, #262ca6
- Triadic: #a6266c, #6ca626
- Split-complementary: #a6262c, #a6a026
- Tetradic: #a026a6, #a66026, #2ca626

## Colors that go with #266ca6

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 #266ca6: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), 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). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #266ca6 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/crimson
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #266ca6 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 #266ca6 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] — 7 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #266ca6, 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 #266ca6: 9 real palettes, including Fintech Trust and Glacier, as the lead colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #266ca6: 6 real palettes, including Venmo's brand system and Deep Water, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #266ca6: 5 real palettes, including Venmo's brand system and Apple's brand system, as the lead colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Apple (https://brandsweets.com/colors/brands/apple-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), ASUS (https://brandsweets.com/colors/brands/asus-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.56:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #205c8d (7.05:1)
- On black (#000000): 3.78:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2a7abb (4.6:1); AA: background → #e8e8e8 (4.54:1); AAA: text → #509bd7 (7.01:1)

## Brands using this color

- **Discover** — secondary #1e71ac (Δ 1.529) — https://brandsweets.com/colors/brands/discover-com
- **McDonald's** — accent #006bae (Δ 1.916) — https://brandsweets.com/colors/brands/mcdonalds-com
- **British Airways** — secondary #3468ad (Δ 1.997) — https://brandsweets.com/colors/brands/britishairways-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/266ca6-9cadc4-df4e53-1f212d-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: "#266ca6" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.