Color

#0129da

#0129da
hex#0129da
rgbrgb(1, 41, 218)
hslhsl(229, 99%, 43%)
oklchoklch(0.43 0.259 264.2)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0665

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dab201

#0195da · #4601da

#da0129 · #29da01

Split-complementary

Open in tool →

#da4601 · #95da01

#da0195 · #dab201 · #01da46

Contrast

#0129da as textRatioAAAA largeAAAFix
Aaon white
9.01:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #4365fe as the text (4.53:1)
  • AAA: use #768ffe as the text (7.13:1)
  • AA: or shift the background to #b8b8b8 (4.54:1)
  • AAA: or shift the background to #e3e3e3 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0129da 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

#0129da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0129da
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 #0129da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0129da-9c9fc4-df7e4e-231f2d-e9eef1?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