# #366dd3

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

## Values

- Hex: `#366dd3`
- RGB: rgb(54, 109, 211)
- HSL: hsl(219, 64%, 52%)
- OKLCH: oklch(0.553 0.168 261.4)
- Relative luminance: 0.1642
- Nearest named color: God of Rain (#4466cc, Δ 2.15) — https://brandsweets.com/colors/god-of-rain
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/366dd3

## Tints & shades

- Tints (toward white): #4b7cd8, #5c88db, #7198e0, #82a4e3, #96b3e8, #abc2ed, #bccef0, #d1def5, #e2eaf9, #f7f9fd
- Shades (toward black): #2b61c5, #2757b0, #234e9f, #1e448a, #1a3a75, #152f60, #11254b, #0d1d3b, #081326, #040811

## Harmonies

- Complementary: #d39c36
- Analogous: #36bbd3, #4e36d3
- Triadic: #d3366d, #6dd336
- Split-complementary: #d34e36, #bbd336
- Tetradic: #d336bb, #d39c36, #36d34e

## Colors that go with #366dd3

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 #366dd3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-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
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #366dd3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #366dd3 in 11 real palettes, including Wikipedia's brand system and Walmart's brand system, as the accent. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 16 real palettes, including Pixar's brand system and BBC's brand system put Blue beside #366dd3, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #366dd3: 13 real palettes, including Carrefour's brand system and Intel's brand system, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Intel (https://brandsweets.com/colors/brands/intel-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #366dd3: 6 real palettes, including NBA's brand system and Coca-Cola's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #366dd3 in 17 real palettes, including Pizza Hut's brand system and Foot Locker's brand system, as the supporting colour. Seen in: Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #366dd3: 7 real palettes, including Astro's brand system and Venmo's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Venmo (https://brandsweets.com/colors/brands/venmo-com), Calm (https://brandsweets.com/colors/brands/calm-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 4.9:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2654ab (7.15:1)
- On black (#000000): 4.28:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3f73d5 (4.62:1); AA: background → #f7f7f7 (4.57:1); AAA: text → #6d95df (7.01:1)

## Brands using this color

- **Pizza Hut** — accent #266dcc (Δ 1.642) — https://brandsweets.com/colors/brands/pizzahut-com
- **Subaru** — secondary #1971d4 (Δ 1.808) — https://brandsweets.com/colors/brands/subaru-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/366dd3-9ca5c4-df664e-211f2d-e9f0f1?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: "#366dd3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.