Color

#172872

#172872
hex#172872
rgbrgb(23, 40, 114)
hslhsl(229, 66%, 27%)
oklchoklch(0.316 0.129 268)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0291

Colors that go with #172872

Charcoal, Steel Blue 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 →

#726217

#175672 · #341772

#721728 · #287217

Split-complementary

Open in tool →

#723417 · #567217

#721756 · #726217 · #177234

Contrast

#172872 as textRatioAAAA largeAAAFix
Aaon white
13.27:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #566edc as the text (4.66:1)
  • AAA: use #8093e5 as the text (7.22:1)
  • AA: or shift the background to #999999 (4.66:1)
  • AAA: or shift the background to #bdbdbd (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 #172872 as the background.

Brands using this color

Fonts for this mood

#172872 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #172872
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 #172872 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/172872-9c9fc4-df7e4e-231f2d-e9eef1?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