# #37436d

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

## Values

- Hex: `#37436d`
- RGB: rgb(55, 67, 109)
- HSL: hsl(227, 33%, 32%)
- OKLCH: oklch(0.393 0.073 270.7)
- Relative luminance: 0.0593
- Nearest named color: Blue Funk (#2d4470, Δ 1.356) — https://brandsweets.com/colors/blue-funk
- Moods: cool, muted
- Page: https://brandsweets.com/colors/37436d

## Tints & shades

- Tints (toward white): #435184, #4d5d99, #5c6ead, #7180b7, #8895c3, #a0aacf, #b4bcd9, #ccd2e5, #e0e4f0, #f8f9fc
- Shades (toward black): #323c62, #2c3658, #293251, #242c47, #1f253d, #1a1f33, #151929, #111522, #0c0f18, #07080e

## Harmonies

- Complementary: #6d6137
- Analogous: #375d6d, #46376d
- Triadic: #6d3742, #426d37
- Split-complementary: #6d4637, #5d6d37
- Tetradic: #6d375d, #6d6137, #376d46

## Colors that go with #37436d

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #37436d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 7 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #37436d, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), Tesco (https://brandsweets.com/colors/brands/tesco-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #37436d: 4 real palettes, including Dusk and Open House, as the supporting colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Open House (https://brandsweets.com/palettes/clean#open-house), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/cadetblue
- **Crimson** #dc143c [pool] — Crimson is paired with #37436d in 9 real palettes, including Codecademy's brand system and Marvel's brand system, as the accent. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Casper Sleep (https://brandsweets.com/colors/brands/casper-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #37436d: 17 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent. Seen in: 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), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #37436d in 4 real palettes, including Sapphire & Gold and Disney's brand system, as the supporting colour. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Disney (https://brandsweets.com/colors/brands/disney-com), Open House (https://brandsweets.com/palettes/clean#open-house), Fireside (https://brandsweets.com/palettes/dark#fireside). — https://brandsweets.com/colors/goldenrod
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #37436d in 4 real palettes, including Confluent's brand system and Lagoon, as the accent. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), N26 (https://brandsweets.com/colors/brands/n26-com), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/lightseagreen
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #37436d: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 9.61:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.19:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6374b0 (4.66:1); AA: background → #b3b3b3 (4.58:1); AAA: text → #8895c3 (7.13:1); AAA: background → #dedede (7.14:1)

## Brands using this color

- **Microsoft** — secondary #2a446f (Δ 1.67) — https://brandsweets.com/colors/brands/microsoft-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/37436d-9ca0c4-df7a4e-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: "#37436d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.