Color

#0ca1bb

#0ca1bb
hex#0ca1bb
rgbrgb(12, 161, 187)
hslhsl(189, 88%, 39%)
oklchoklch(0.653 0.114 214.8)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2916

Colors that go with #0ca1bb

Charcoal, Orange Red 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 →

#bb260c

#0cbb7e · #0c49bb

#bb0ca1 · #a1bb0c

Split-complementary

Open in tool →

#bb0c49 · #bb7e0c

#7e0cbb · #bb260c · #49bb0c

Contrast

#0ca1bb as textRatioAAAA largeAAAFix
Aaon white
3.07:1failpassfail
  • AA: use #098095 as the text (4.63:1)
  • AAA: use #075f6e as the text (7.31:1)
  • AA: or shift the background to #2b2b2b (4.61:1)
Aaon black
6.83:1passpassfail
  • AAA: use #0ca5c0 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0ca1bb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0ca1bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ca1bb
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 #0ca1bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ca1bb-a2b7be-df4e7e-1f252d-e9f1ee?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