Color

#434c8e

#434c8e
hex#434c8e
rgbrgb(67, 76, 142)
hslhsl(233, 36%, 41%)
oklchoklch(0.443 0.108 275.2)
Closest name: Blueberry (#464196)Relative luminance 0.0832

Colors that go with #434c8e

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 #434c8e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8e8543

#43718e · #60438e

#8e434c · #4c8e43

Split-complementary

Open in tool →

#8e6043 · #718e43

#8e4371 · #8e8543 · #438e60

Contrast

#434c8e as textRatioAAAA largeAAAFix
Aaon white
7.89:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #6670b7 as the text (4.57:1)
  • AAA: use #8d94c9 as the text (7.21:1)
  • AA: or shift the background to #c4c4c4 (4.52:1)
  • AAA: or shift the background to #f2f2f2 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #434c8e 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

#434c8e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #434c8e
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 #434c8e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/434c8e-9c9cc4-df884e-241f2d-e9eef1?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