Color

#0aa9ff

#0aa9ff
hex#0aa9ff
rgbrgb(10, 169, 255)
hslhsl(201, 100%, 52%)
oklchoklch(0.705 0.168 242.8)
Closest name: Cerulean (#55aaee)Relative luminance 0.3566

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff600a

#0affda · #0a2fff

#ff0aa9 · #a9ff0a

Split-complementary

Open in tool →

#ff0a2f · #ffda0a

#da0aff · #ff600a · #2fff0a

Contrast

#0aa9ff as textRatioAAAA largeAAAFix
Aaon white
2.58:1failfailfail
  • AA: use #007bbd as the text (4.6:1)
  • AAA: use #005d8f as the text (7.09:1)
  • AA: or shift the background to #383838 (4.54:1)
  • AAA: or shift the background to #141414 (7.13:1)
Aaon black
8.13:1passpasspassPasses 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 #0aa9ff as the background.

Brands using this color

Fonts for this mood

#0aa9ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0aa9ff
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 #0aa9ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0aa9ff-9cb1c4-df4e62-1f222d-e9f1f0?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