Color

#404654

#404654
hex#404654
rgbrgb(64, 70, 84)
hslhsl(222, 14%, 29%)
oklchoklch(0.394 0.025 266.9)
Closest name: Arsenic (#3b444b)Relative luminance 0.0611

Colors that go with #404654

Blue, Blush Pink and Cadet 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 →

#544e40

#405054 · #444054

#544046 · #465440

Split-complementary

Open in tool →

#544440 · #505440

#544050 · #544e40 · #405444

Contrast

#404654 as textRatioAAAA largeAAAFix
Aaon white
9.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.22:1failfailfail
  • AA: use #6b768e as the text (4.61:1)
  • AAA: use #8e96a9 as the text (7.09:1)
  • AA: or shift the background to #b3b3b3 (4.51:1)
  • AAA: or shift the background to #dedede (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404654 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

#404654 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #404654
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 #404654 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404654-9ca3c4-df6e4e-211f2d-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