# #1f586b

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

## Values

- Hex: `#1f586b`
- RGB: rgb(31, 88, 107)
- HSL: hsl(195, 55%, 27%)
- OKLCH: oklch(0.432 0.066 223.7)
- Relative luminance: 0.0833
- Nearest named color: Abyssal Waters (#005765, Δ 1.909) — https://brandsweets.com/colors/abyssal-waters
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/1f586b

## Tints & shades

- Tints (toward white): #276f86, #2f85a2, #379cbe, #4daccb, #6dbbd5, #88c8dd, #a4d4e5, #c0e1ed, #dbeef5, #f7fbfd
- Shades (toward black): #1d5163, #194857, #17414f, #153b47, #12343f, #0f2a33, #0d242b, #0a1d24, #071418, #050d10

## Harmonies

- Complementary: #6b321f
- Analogous: #1f6b58, #1f326b
- Triadic: #6b1f58, #586b1f
- Split-complementary: #6b1f32, #6b581f
- Tetradic: #581f6b, #6b321f, #326b1f

## Colors that go with #1f586b

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: split] — Crimson is a split-complement of #1f586b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [harmony, pool: analogous] — Denim is #1f586b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. 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
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #1f586b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Blue** #0000ff [pool] — 7 real palettes, including Alaska Airlines's brand system and Jeep's brand system put Blue beside #1f586b, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Tesco (https://brandsweets.com/colors/brands/tesco-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #1f586b: 4 real palettes, including Open House and Dusk, as the supporting colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Dusk (https://brandsweets.com/palettes/cool#dusk), Alpine (https://brandsweets.com/palettes/cool#alpine), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/cadetblue
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #1f586b in 5 real palettes, including Fireside and Open House, as the accent. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Open House (https://brandsweets.com/palettes/clean#open-house), Disney (https://brandsweets.com/colors/brands/disney-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/goldenrod
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #1f586b in 4 real palettes, including Mint Modern and Console Light, as the lead colour. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Console Light (https://brandsweets.com/palettes/technical#console-light), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/mediumseagreen
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #1f586b: 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): 7.88:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.67:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2d7f9a (4.61:1); AA: background → #c4c4c4 (4.52:1); AAA: text → #39a3c6 (7.23:1); AAA: background → #f2f2f2 (7.03:1)

## 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/1f586b-9cb5c4-df4e70-1f242d-e9f1ef?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: "#1f586b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.