Color

#0b2cfe

#0b2cfe
hex#0b2cfe
rgbrgb(11, 44, 254)
hslhsl(232, 99%, 52%)
oklchoklch(0.478 0.294 264.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.0903

Colors that go with #0b2cfe

Charcoal, Crimson and Cobalt 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 →

#fedd0b

#0ba5fe · #640bfe

#fe0b2c · #2cfe0b

Split-complementary

Open in tool →

#fe640b · #a5fe0b

#fe0ba5 · #fedd0b · #0bfe64

Contrast

#0b2cfe as textRatioAAAA largeAAAFix
Aaon white
7.48:1passpasspassPasses AAA — no fix needed.
Aaon black
2.81:1failfailfail
  • AA: use #4d65fe as the text (4.61:1)
  • AAA: use #7b8dfe as the text (7.08:1)
  • AA: or shift the background to #c9c9c9 (4.52:1)
  • AAA: or shift the background to #fafafa (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b2cfe as the background.

Brands using this color

Fonts for this mood

#0b2cfe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b2cfe
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 #0b2cfe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b2cfe-9c9dc4-df864e-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