Color

#17403b

#17403b
hex#17403b
rgbrgb(23, 64, 59)
hslhsl(173, 47%, 17%)
oklchoklch(0.341 0.047 184.5)
Closest name: Botanical Night (#12403c)Relative luminance 0.0416

Colors that go with #17403b

Sea Green, Teal 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.

Real palettes that use #17403b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#40171c

#174027 · #173040

#3b1740 · #403b17

Split-complementary

Open in tool →

#401730 · #402717

#271740 · #40171c · #304017

Contrast

#17403b as textRatioAAAA largeAAAFix
Aaon white
11.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.83:1failfailfail
  • AA: use #2f8379 as the text (4.64:1)
  • AAA: use #3ba599 as the text (7.03:1)
  • AA: or shift the background to #a3a3a3 (4.54:1)
  • AAA: or shift the background to #cccccc (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #17403b as the background.

Brands using this color

Fonts for this mood

#17403b reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #17403b
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 #17403b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/17403b-a2bebe-d459a3-1f292d-e9f1ec?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