Color

#0bc9ef

#0bc9ef
hex#0bc9ef
rgbrgb(11, 201, 239)
hslhsl(190, 91%, 49%)
oklchoklch(0.772 0.138 218.1)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.4808

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef310b

#0befa3 · #0b57ef

#ef0bc9 · #c9ef0b

Split-complementary

Open in tool →

#ef0b57 · #efa30b

#a30bef · #ef310b · #57ef0b

Contrast

#0bc9ef as textRatioAAAA largeAAAFix
Aaon white
1.98:1failfailfail
  • AA: use #077f97 as the text (4.68:1)
  • AAA: use #055e70 as the text (7.39:1)
  • AA: or shift the background to #474747 (4.7:1)
  • AAA: or shift the background to #2b2b2b (7.16:1)
Aaon black
10.62:1passpasspassPasses 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 #0bc9ef 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

#0bc9ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0bc9ef
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 #0bc9ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0bc9ef-a2b6be-df4e7c-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