Color

#0900b3

#0900b3
hex#0900b3
rgbrgb(9, 0, 179)
hslhsl(243, 100%, 35%)
oklchoklch(0.349 0.239 265.4)
Closest name: Bohemian Blue (#0000aa)Relative luminance 0.0331

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aab300

#0050b3 · #6200b3

#b30900 · #00b309

Split-complementary

Open in tool →

#b36200 · #50b300

#b30050 · #aab300 · #00b362

Contrast

#0900b3 as textRatioAAAA largeAAAFix
Aaon white
12.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #645cff as the text (4.52:1)
  • AAA: use #908aff as the text (7.27:1)
  • AA: or shift the background to #9c9c9c (4.6:1)
  • AAA: or shift the background to #c2c2c2 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0900b3 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

#0900b3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0900b3
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 #0900b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0900b3-a39cc4-dfa04e-261f2d-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