Color

#43538e

#43538e
hex#43538e
rgbrgb(67, 83, 142)
hslhsl(227, 36%, 41%)
oklchoklch(0.458 0.098 270.7)
Closest name: Dusk (#4e5481)Relative luminance 0.0933

Colors that go with #43538e

Charcoal, Sea Green and Steel 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.

Real palettes that use #43538e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8e7e43

#43798e · #58438e

#8e4353 · #538e43

Split-complementary

Open in tool →

#8e5843 · #798e43

#8e4379 · #8e7e43 · #438e58

Contrast

#43538e as textRatioAAAA largeAAAFix
Aaon white
7.33:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #5f72b4 as the text (4.55:1)
  • AAA: use #8694c6 as the text (7.07:1)
  • 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 #43538e 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

#43538e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #43538e
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 #43538e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43538e-9ca0c4-df7a4e-221f2d-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