Color

#0ca5cf

#0ca5cf
hex#0ca5cf
rgbrgb(12, 165, 207)
hslhsl(193, 89%, 43%)
oklchoklch(0.672 0.125 224.7)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.3149

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cf360c

#0ccf98 · #0c43cf

#cf0ca5 · #a5cf0c

Split-complementary

Open in tool →

#cf0c43 · #cf980c

#980ccf · #cf360c · #43cf0c

Contrast

#0ca5cf as textRatioAAAA largeAAAFix
Aaon white
2.88:1failfailfail
  • AA: use #097f9f as the text (4.62:1)
  • AAA: use #076078 as the text (7.11:1)
  • AA: or shift the background to #303030 (4.59:1)
  • AAA: or shift the background to #050505 (7.08:1)
Aaon black
7.3:1passpasspassPasses 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 #0ca5cf 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

#0ca5cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ca5cf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0ca5cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ca5cf-a2b5be-df4e75-1f242d-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