Color

#0105df

#0105df
hex#0105df
rgbrgb(1, 5, 223)
hslhsl(239, 99%, 44%)
oklchoklch(0.411 0.282 264.2)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0544

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dfdc01

#0174df · #6c01df

#df0105 · #05df01

Split-complementary

Open in tool →

#df6c01 · #74df01

#df0174 · #dfdc01 · #01df6c

Contrast

#0105df as textRatioAAAA largeAAAFix
Aaon white
10.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #5d5ffe as the text (4.53:1)
  • AAA: use #8a8cfe as the text (7.26:1)
  • AA: or shift the background to #b0b0b0 (4.64:1)
  • AAA: or shift the background to #d9d9d9 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0105df 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

#0105df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0105df
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 #0105df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0105df-a09cc4-df964e-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