Color

#17404a

#17404a
hex#17404a
rgbrgb(23, 64, 74)
hslhsl(192, 53%, 19%)
oklchoklch(0.347 0.048 216.5)
Closest name: Cold and Dark (#154250)Relative luminance 0.0434

Colors that go with #17404a

Crimson, Steel Blue and Teal 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 →

#4a2117

#174a3b · #17264a

#4a1740 · #404a17

Split-complementary

Open in tool →

#4a1726 · #4a3b17

#3b174a · #4a2117 · #264a17

Contrast

#17404a as textRatioAAAA largeAAAFix
Aaon white
11.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #2e8094 as the text (4.63:1)
  • AAA: use #3ba5bf as the text (7.32:1)
  • AA: or shift the background to #a6a6a6 (4.62:1)
  • AAA: or shift the background to #cfcfcf (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #17404a as the background.

Brands using this color

Fonts for this mood

#17404a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #17404a
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 #17404a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/17404a-a2b5be-df4e77-1f242d-e9f1ef?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