Color

#172b72

#172b72
hex#172b72
rgbrgb(23, 43, 114)
hslhsl(227, 66%, 27%)
oklchoklch(0.323 0.125 266.9)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0312

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#725f17

#175972 · #311772

#72172b · #2b7217

Split-complementary

Open in tool →

#723117 · #597217

#721759 · #725f17 · #177231

Contrast

#172b72 as textRatioAAAA largeAAAFix
Aaon white
12.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #516fdb as the text (4.65:1)
  • AAA: use #7c92e4 as the text (7.09:1)
  • AA: or shift the background to #999999 (4.54:1)
  • AAA: or shift the background to #bfbfbf (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 #172b72 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

#172b72 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #172b72
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #172b72 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/172b72-9ca0c4-df7a4e-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