Color

#435fb1

#435fb1
hex#435fb1
rgbrgb(67, 95, 177)
hslhsl(225, 45%, 48%)
oklchoklch(0.506 0.134 267.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1255

Colors that go with #435fb1

Charcoal, Sea Green 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b19643

#4396b1 · #5f43b1

#b1435f · #5fb143

Split-complementary

Open in tool →

#b15f43 · #96b143

#b14396 · #b19643 · #43b15f

Contrast

#435fb1 as textRatioAAAA largeAAAFix
Aaon white
5.98:1passpassfail
  • AAA: use #3c559f as the text (7.02:1)
Aaon black
3.51:1failpassfail
  • AA: use #5972c0 as the text (4.59:1)
  • AAA: use #8195cf as the text (7.13:1)
  • AA: or shift the background to #e0e0e0 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #435fb1 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

#435fb1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #435fb1
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 #435fb1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/435fb1-9ca1c4-df754e-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