Color

#436fd6

#436fd6
hex#436fd6
rgbrgb(67, 111, 214)
hslhsl(222, 64%, 55%)
oklchoklch(0.565 0.166 264.3)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1742

Colors that go with #436fd6

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 →

#d6aa43

#43b8d6 · #6043d6

#d6436f · #6fd643

Split-complementary

Open in tool →

#d66043 · #b8d643

#d643b8 · #d6aa43 · #43d660

Contrast

#436fd6 as textRatioAAAA largeAAAFix
Aaon white
4.68:1passpassfail
  • AAA: use #2752b4 as the text (7.11:1)
Aaon black
4.48:1failpassfail
  • AA: use #4772d7 as the text (4.66:1)
  • AAA: use #7595e1 as the text (7.14:1)
  • AA: or shift the background to #fcfcfc (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #436fd6 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

#436fd6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #436fd6
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 #436fd6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/436fd6-9ca3c4-df6e4e-211f2d-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