Color

#172e6d

#172e6d
hex#172e6d
rgbrgb(23, 46, 109)
hslhsl(224, 65%, 26%)
oklchoklch(0.325 0.114 265.3)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0324

Colors that go with #172e6d

Steel Blue, Blue and Cadet 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 →

#6d5617

#17596d · #2b176d

#6d172e · #2e6d17

Split-complementary

Open in tool →

#6d2b17 · #596d17

#6d1759 · #6d5617 · #176d2b

Contrast

#172e6d as textRatioAAAA largeAAAFix
Aaon white
12.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.65:1failfailfail
  • AA: use #4a70d9 as the text (4.61:1)
  • AAA: use #7895e2 as the text (7.2:1)
  • AA: or shift the background to #9c9c9c (4.64:1)
  • AAA: or shift the background to #c2c2c2 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #172e6d as the background.

Brands using this color

Fonts for this mood

#172e6d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #172e6d
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 #172e6d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/172e6d-9ca2c4-df724e-221f2d-e9eff1?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