Color

#0901df

#0901df
hex#0901df
rgbrgb(9, 1, 223)
hslhsl(242, 99%, 44%)
oklchoklch(0.41 0.282 264.9)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0541

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d8df01

#0169df · #7801df

#df0901 · #01df09

Split-complementary

Open in tool →

#df7801 · #69df01

#df0169 · #d8df01 · #01df78

Contrast

#0901df as textRatioAAAA largeAAAFix
Aaon white
10.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #625dfe as the text (4.52:1)
  • AAA: use #8e8afe as the text (7.22:1)
  • AA: or shift the background to #b0b0b0 (4.65:1)
  • AAA: or shift the background to #d9d9d9 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0901df 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

#0901df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0901df
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 #0901df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0901df-a29cc4-df9e4e-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