Color

#0909aa

#0909aa
hex#0909aa
rgbrgb(9, 9, 170)
hslhsl(240, 90%, 35%)
oklchoklch(0.341 0.226 265.5)
Closest name: Cobalt (#030aa7)Relative luminance 0.0316

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aaaa09

#0959aa · #5909aa

#aa0909 · #09aa09

Split-complementary

Open in tool →

#aa5909 · #59aa09

#aa0959 · #aaaa09 · #09aa59

Contrast

#0909aa as textRatioAAAA largeAAAFix
Aaon white
12.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.63:1failfailfail
  • AA: use #6464f7 as the text (4.71:1)
  • AAA: use #8b8bf9 as the text (7.16:1)
  • AA: or shift the background to #999999 (4.52:1)
  • AAA: or shift the background to #bfbfbf (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0909aa 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

#0909aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0909aa
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 #0909aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0909aa-a19cc4-df994e-251f2d-e9edf1?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