Color

#174b87

#174b87
hex#174b87
rgbrgb(23, 75, 135)
hslhsl(212, 71%, 31%)
oklchoklch(0.413 0.114 254.8)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0696

Colors that go with #174b87

Crimson, Blue and Cornflower Blue 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 →

#875317

#178387 · #1b1787

#87174b · #4b8717

Split-complementary

Open in tool →

#871b17 · #838717

#871783 · #875317 · #17871b

Contrast

#174b87 as textRatioAAAA largeAAAFix
Aaon white
8.78:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #2375d1 as the text (4.54:1)
  • AAA: use #599ae3 as the text (7.16:1)
  • AA: or shift the background to #bababa (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #174b87 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#174b87 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #174b87
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 #174b87 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/174b87-9caac4-df564e-1f202d-e9f1f1?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