Color

#172e73

#172e73
hex#172e73
rgbrgb(23, 46, 115)
hslhsl(225, 67%, 27%)
oklchoklch(0.33 0.122 265.8)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0337

Tints & shades

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

Harmonies

Complementary

Open in tool →

#735c17

#175c73 · #2e1773

#73172e · #2e7317

Split-complementary

Open in tool →

#732e17 · #5c7317

#73175c · #735c17 · #17732e

Contrast

#172e73 as textRatioAAAA largeAAAFix
Aaon white
12.54:1passpasspassPasses AAA — no fix needed.
Aaon black
1.67:1failfailfail
  • AA: use #4c70dc as the text (4.66:1)
  • AAA: use #7792e4 as the text (7.02:1)
  • AA: or shift the background to #9c9c9c (4.57:1)
  • AAA: or shift the background to #c2c2c2 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #172e73 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

#172e73 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #172e73
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 #172e73 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/172e73-9ca1c4-df754e-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