Color

#403550

#403550
hex#403550
rgbrgb(64, 53, 80)
hslhsl(264, 20%, 26%)
oklchoklch(0.352 0.048 302.7)
Closest name: Call It a Night (#42364c)Relative luminance 0.0422

Colors that go with #403550

Dark Olive Green, Sea Green 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 →

#455035

#353850 · #4d3550

#504035 · #355040

Split-complementary

Open in tool →

#504d35 · #385035

#503538 · #455035 · #35504d

Contrast

#403550 as textRatioAAAA largeAAAFix
Aaon white
11.39:1passpasspassPasses AAA — no fix needed.
Aaon black
1.84:1failfailfail
  • AA: use #806c9d as the text (4.55:1)
  • AAA: use #a091b6 as the text (7.22:1)
  • AA: or shift the background to #a3a3a3 (4.52:1)
  • AAA: or shift the background to #cccccc (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #403550 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

#403550 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #403550
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 #403550 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/403550-b19cc4-dfd34e-2b1f2d-e9eaf1?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