Color

#0c9bbb

#0c9bbb
hex#0c9bbb
rgbrgb(12, 155, 187)
hslhsl(191, 88%, 39%)
oklchoklch(0.638 0.114 219.8)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2711

Colors that go with #0c9bbb

Charcoal, Amber and 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.

Real palettes that use #0c9bbb

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb2c0c

#0cbb84 · #0c43bb

#bb0c9b · #9bbb0c

Split-complementary

Open in tool →

#bb0c43 · #bb840c

#840cbb · #bb2c0c · #43bb0c

Contrast

#0c9bbb as textRatioAAAA largeAAAFix
Aaon white
3.27:1failpassfail
  • AA: use #0a7f99 as the text (4.66:1)
  • AAA: use #075f73 as the text (7.26:1)
  • AA: or shift the background to #262626 (4.63:1)
Aaon black
6.42:1passpassfail
  • AAA: use #0da3c5 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c9bbb 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

#0c9bbb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c9bbb
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 #0c9bbb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c9bbb-a2b6be-df4e7a-1f252d-e9f1ef?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