Color

#0c5bed

#0c5bed
hex#0c5bed
rgbrgb(12, 91, 237)
hslhsl(219, 90%, 49%)
oklchoklch(0.528 0.231 261.9)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1367

Colors that go with #0c5bed

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 →

#ed9f0c

#0ccced · #2e0ced

#ed0c5b · #5bed0c

Split-complementary

Open in tool →

#ed2e0c · #cced0c

#ed0ccc · #ed9f0c · #0ced2e

Contrast

#0c5bed as textRatioAAAA largeAAAFix
Aaon white
5.62:1passpassfail
  • AAA: use #0b4ecb as the text (7.08:1)
Aaon black
3.73:1failpassfail
  • AA: use #256df4 as the text (4.57:1)
  • AAA: use #5f94f7 as the text (7.07:1)
  • AA: or shift the background to #e6e6e6 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c5bed as the background.

Brands using this color

Fonts for this mood

#0c5bed reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c5bed
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 #0c5bed and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c5bed-9ca5c4-df664e-211f2d-e9f0f1?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