Color

#174f78

#174f78
hex#174f78
rgbrgb(23, 79, 120)
hslhsl(205, 68%, 28%)
oklchoklch(0.413 0.089 245)
Closest name: Assassin (#2d4f83)Relative luminance 0.0713

Colors that go with #174f78

Royal Blue, Teal and 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 →

#783f17

#177870 · #171f78

#78174f · #4f7817

Split-complementary

Open in tool →

#78171f · #787017

#701778 · #783f17 · #1f7817

Contrast

#174f78 as textRatioAAAA largeAAAFix
Aaon white
8.66:1passpasspassPasses AAA — no fix needed.
Aaon black
2.43:1failfailfail
  • AA: use #237ab8 as the text (4.55:1)
  • AAA: use #439cdb as the text (7.02:1)
  • AA: or shift the background to #bdbdbd (4.61:1)
  • AAA: or shift the background to #e8e8e8 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #174f78 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

#174f78 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #174f78
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 #174f78 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/174f78-9cafc4-df4e58-1f212d-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