Color

#1f4656

#1f4656
hex#1f4656
rgbrgb(31, 70, 86)
hslhsl(197, 47%, 23%)
oklchoklch(0.373 0.052 227.5)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0534

Colors that go with #1f4656

Denim, Teal and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#562f1f

#1f564a · #1f2b56

#561f47 · #47561f

Split-complementary

Open in tool →

#561f2b · #564a1f

#4a1f56 · #562f1f · #2b561f

Contrast

#1f4656 as textRatioAAAA largeAAAFix
Aaon white
10.15:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #377e9a as the text (4.61:1)
  • AAA: use #4fa0bf as the text (7.11:1)
  • AA: or shift the background to #adadad (4.52:1)
  • AAA: or shift the background to #d9d9d9 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f4656 as the background.

Brands using this color

Fonts for this mood

#1f4656 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f4656
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1f4656 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f4656-9cb4c4-df4e6b-1f232d-e9f1ef?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md