# #3753ae

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

## Values

- Hex: `#3753ae`
- RGB: rgb(55, 83, 174)
- HSL: hsl(226, 52%, 45%)
- OKLCH: oklch(0.472 0.149 267.5)
- Relative luminance: 0.1005
- Nearest named color: Blasphemous Blue (#3356aa, Δ 1.112) — https://brandsweets.com/colors/blasphemous-blue
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3753ae

## Tints & shades

- Tints (toward white): #3d5cc2, #5470c9, #6880cf, #7b90d5, #92a4dd, #a6b4e3, #b9c4e9, #cdd5ef, #e4e8f6, #f7f8fd
- Shades (toward black): #324c9f, #2d448f, #283d80, #233570, #1f2e61, #18254e, #141d3e, #0f162f, #0a0f1f, #050710

## Harmonies

- Complementary: #ae9337
- Analogous: #378fae, #5737ae
- Triadic: #ae3753, #53ae37
- Split-complementary: #ae5737, #8fae37
- Tetradic: #ae378f, #ae9337, #37ae57

## Colors that go with #3753ae

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 #3753ae: softer than #000 and cool enough to feel like part of the same palette. Seen in: 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), 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 #3753ae — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/seagreen
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #3753ae's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: American Express (https://brandsweets.com/colors/brands/americanexpress-com), Discover (https://brandsweets.com/colors/brands/discover-com), Capital One (https://brandsweets.com/colors/brands/capitalone-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #3753ae in 7 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent. Seen in: Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Pixar's brand system and Tesco's brand system put Blue beside #3753ae, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Activision (https://brandsweets.com/colors/brands/activision-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3753ae: 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), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #3753ae in 15 real palettes, including Chase's brand system and Costco's brand system, as the accent. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Costco (https://brandsweets.com/colors/brands/costco-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 #3753ae: 5 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), Kraken (https://brandsweets.com/colors/brands/kraken-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 6.97:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3651ab (7.19:1)
- On black (#000000): 3.01:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #5470c9 (4.54:1); AA: background → #d1d1d1 (4.57:1); AAA: text → #7f94d7 (7.12:1)

## Brands using this color

- **Fivetran blue** — secondary #2e54b6 (Δ 1.5) — https://brandsweets.com/colors/brands/fivetran-com

## Fonts for this mood

- 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/3753ae-9ca1c4-df774e-221f2d-e9eff1?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: "#3753ae" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.