Color

#173f40

#173f40
hex#173f40
rgbrgb(23, 63, 64)
hslhsl(181, 47%, 17%)
oklchoklch(0.34 0.045 197.5)
Closest name: Botanical Night (#12403c)Relative luminance 0.0411

Colors that go with #173f40

Crimson, Sea Green and Steel 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 →

#401817

#17402c · #172b40

#40173f · #3f4017

Split-complementary

Open in tool →

#40172b · #402c17

#2c1740 · #401817 · #2b4017

Contrast

#173f40 as textRatioAAAA largeAAAFix
Aaon white
11.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #2f8283 as the text (4.64:1)
  • AAA: use #3da7a9 as the text (7.3:1)
  • AA: or shift the background to #a3a3a3 (4.57:1)
  • AAA: or shift the background to #cccccc (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #173f40 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

#173f40 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #173f40
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 #173f40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/173f40-a2babe-d45992-1f272d-e9f1ed?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