Color

#1f475c

#1f475c
hex#1f475c
rgbrgb(31, 71, 92)
hslhsl(201, 50%, 24%)
oklchoklch(0.379 0.057 234)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0557

Colors that go with #1f475c

Royal Blue, 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 →

#5c341f

#1f5c53 · #1f285c

#5c1f46 · #465c1f

Split-complementary

Open in tool →

#5c1f28 · #5c531f

#531f5c · #5c341f · #285c1f

Contrast

#1f475c as textRatioAAAA largeAAAFix
Aaon white
9.93:1passpasspassPasses AAA — no fix needed.
Aaon black
2.11:1failfailfail
  • AA: use #367ba1 as the text (4.5:1)
  • AAA: use #539dc6 as the text (7.01:1)
  • AA: or shift the background to #b0b0b0 (4.58:1)
  • AAA: or shift the background to #d9d9d9 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f475c as the background.

Brands using this color

Fonts for this mood

#1f475c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f475c
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 #1f475c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f475c-9cb1c4-df4e62-1f222d-e9f1f0?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