Color

#0e43be

#0e43be
hex#0e43be
rgbrgb(14, 67, 190)
hslhsl(222, 86%, 40%)
oklchoklch(0.44 0.2 263.1)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0783

Colors that go with #0e43be

Charcoal, Crimson 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#be890e

#0e9bbe · #310ebe

#be0e43 · #43be0e

Split-complementary

Open in tool →

#be310e · #9bbe0e

#be0e9b · #be890e · #0ebe31

Contrast

#0e43be as textRatioAAAA largeAAAFix
Aaon white
8.19:1passpasspassPasses AAA — no fix needed.
Aaon black
2.57:1failfailfail
  • AA: use #336cf0 as the text (4.54:1)
  • AAA: use #6c95f4 as the text (7.24:1)
  • AA: or shift the background to #c2c2c2 (4.6:1)
  • AAA: or shift the background to #f0f0f0 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0e43be as the background.

Brands using this color

Fonts for this mood

#0e43be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0e43be
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 #0e43be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0e43be-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