Color

#0ca9bb

#0ca9bb
hex#0ca9bb
rgbrgb(12, 169, 187)
hslhsl(186, 88%, 39%)
oklchoklch(0.673 0.114 208.3)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3204

Colors that go with #0ca9bb

Charcoal, Tomato 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.

Real palettes that use #0ca9bb

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb1d0c

#0cbb75 · #0c52bb

#bb0ca9 · #a9bb0c

Split-complementary

Open in tool →

#bb0c52 · #bb750c

#750cbb · #bb1d0c · #52bb0c

Contrast

#0ca9bb as textRatioAAAA largeAAAFix
Aaon white
2.83:1failfailfail
  • AA: use #098290 as the text (4.56:1)
  • AAA: use #076069 as the text (7.28:1)
  • AA: or shift the background to #303030 (4.66:1)
  • AAA: or shift the background to #080808 (7.07:1)
Aaon black
7.41:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0ca9bb as the background.

Brands using this color

Fonts for this mood

#0ca9bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ca9bb
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 #0ca9bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ca9bb-a2b8be-df4e86-1f262d-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