Color

#17404f

#17404f
hex#17404f
rgbrgb(23, 64, 79)
hslhsl(196, 55%, 20%)
oklchoklch(0.35 0.052 225.4)
Closest name: Cold and Dark (#154250)Relative luminance 0.0441

Colors that go with #17404f

Crimson, Denim 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 →

#4f2617

#174f42 · #17244f

#4f1740 · #404f17

Split-complementary

Open in tool →

#4f1724 · #4f4217

#42174f · #4f2617 · #244f17

Contrast

#17404f as textRatioAAAA largeAAAFix
Aaon white
11.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #2d7d9a as the text (4.51:1)
  • AAA: use #39a0c6 as the text (7.02:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (7.16:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/17404f-9cb5c4-df4e6e-1f232d-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