Color

#436cfe

#436cfe
hex#436cfe
rgbrgb(67, 108, 254)
hslhsl(227, 99%, 63%)
oklchoklch(0.589 0.222 267.2)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1907

Colors that go with #436cfe

Charcoal, Crimson 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 →

#fed643

#43c9fe · #7843fe

#fe436c · #6cfe43

Split-complementary

Open in tool →

#fe7843 · #c9fe43

#fe43c9 · #fed643 · #43fe78

Contrast

#436cfe as textRatioAAAA largeAAAFix
Aaon white
4.36:1failpassfail
  • AA: use #3e68fe as the text (4.55:1)
  • AAA: use #0138fe as the text (7:1)
  • AA: or shift the background to #0a0a0a (4.54:1)
Aaon black
4.81:1passpassfail
  • AAA: use #7190fe as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #436cfe 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

#436cfe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #436cfe
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 #436cfe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/436cfe-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