Color

#435fea

#435fea
hex#435fea
rgbrgb(67, 95, 234)
hslhsl(230, 80%, 59%)
oklchoklch(0.549 0.211 269.4)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1532

Colors that go with #435fea

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 →

#eace43

#43b2ea · #7b43ea

#ea435f · #5fea43

Split-complementary

Open in tool →

#ea7b43 · #b2ea43

#ea43b2 · #eace43 · #43ea7b

Contrast

#435fea as textRatioAAAA largeAAAFix
Aaon white
5.17:1passpassfail
  • AAA: use #1e3fe6 as the text (7.22:1)
Aaon black
4.06:1failpassfail
  • AA: use #516aec as the text (4.62:1)
  • AAA: use #7e92f1 as the text (7.27:1)
  • AA: or shift the background to #f0f0f0 (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 #435fea as the background.

Brands using this color

Fonts for this mood

#435fea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/435fea-9c9ec4-df814e-231f2d-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