Color

#405587

#405587
hex#405587
rgbrgb(64, 85, 135)
hslhsl(222, 36%, 39%)
oklchoklch(0.456 0.086 265.8)
Closest name: Dusk (#4e5481)Relative luminance 0.0934

Colors that go with #405587

Sea Green, Steel Blue and Amber 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 #405587

Tints & shades

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

Harmonies

Complementary

Open in tool →

#877240

#407987 · #4e4087

#874055 · #558740

Split-complementary

Open in tool →

#874e40 · #798740

#874079 · #877240 · #40874e

Contrast

#405587 as textRatioAAAA largeAAAFix
Aaon white
7.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #5973b1 as the text (4.51:1)
  • AAA: use #8296c4 as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.56:1)
  • AAA: or shift the background to #fafafa (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 #405587 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

#405587 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #405587
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 #405587 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/405587-9ca3c4-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