# #1f507a

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

## Values

- Hex: `#1f507a`
- RGB: rgb(31, 80, 122)
- HSL: hsl(208, 59%, 30%)
- OKLCH: oklch(0.419 0.088 247.7)
- Relative luminance: 0.0743
- Nearest named color: Assassin (#2d4f83, Δ 2.124) — https://brandsweets.com/colors/assassin
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/1f507a

## Tints & shades

- Tints (toward white): #276296, #2e75b2, #3485cb, #5196d2, #6da7d9, #89b8e1, #a6c9e8, #bed8ee, #dbe9f6, #f7fafd
- Shades (toward black): #1c486d, #1a4265, #173a59, #153551, #122d45, #0f2539, #0d2031, #091824, #07131c, #040b10

## Harmonies

- Complementary: #7a491f
- Analogous: #1f7a77, #1f227a
- Triadic: #7a1f50, #507a1f
- Split-complementary: #7a1f22, #7a771f
- Tetradic: #771f7a, #7a491f, #227a1f

## Colors that go with #1f507a

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

- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #1f507a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Costco (https://brandsweets.com/colors/brands/costco-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Blue** #0000ff [pool] — 7 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #1f507a, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Jeep (https://brandsweets.com/colors/brands/jeep-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #1f507a: 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), Alpine (https://brandsweets.com/palettes/cool#alpine), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/cadetblue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #1f507a: 4 real palettes, including Blizzard's brand system and Blue Mono, as the lead colour. Seen in: Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com). — https://brandsweets.com/colors/cornflowerblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1f507a: 15 real palettes, including HP's brand system and Hinge's brand system, as the accent. Seen in: HP (https://brandsweets.com/colors/brands/hp-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/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #1f507a in 5 real palettes, including Sapphire & Gold and Open House, as the supporting colour. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Open House (https://brandsweets.com/palettes/clean#open-house), Disney (https://brandsweets.com/colors/brands/disney-com), Fireside (https://brandsweets.com/palettes/dark#fireside). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 18 real palettes, including First Snow and Microsoft's brand system put Midnight Blue beside #1f507a, as that palette's text colour. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Microsoft (https://brandsweets.com/colors/brands/microsoft-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/midnightblue
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #1f507a: 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): 8.44:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.49:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #307abb (4.63:1); AA: background → #bfbfbf (4.59:1); AAA: text → #599bd4 (7.06:1); AAA: background → #ebebeb (7.08:1)

## Curated palettes containing it

- **First Snow** (winter, cool, light, minimal) — #2b4c7e, #8fa8c8, #c9d6e3, #fbfcfe, #14213d — Ice blue on snow-white with a deep navy — the quietest winter palette; everything is a tint of one cold hue. — tool: https://brandsweets.com/palettes/new/2b4c7e-8fa8c8-c9d6e3-fbfcfe-14213d — collection: https://brandsweets.com/palettes/winter

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold
- 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/1f507a-9cadc4-df4e51-1f212d-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: "#1f507a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.