Color

#0129cb

#0129cb
hex#0129cb
rgbrgb(1, 41, 203)
hslhsl(228, 99%, 40%)
oklchoklch(0.412 0.243 264.2)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.059

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cba301

#018ecb · #3e01cb

#cb0129 · #29cb01

Split-complementary

Open in tool →

#cb3e01 · #8ecb01

#cb018e · #cba301 · #01cb3e

Contrast

#0129cb as textRatioAAAA largeAAAFix
Aaon white
9.63:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #4369fe as the text (4.69:1)
  • AAA: use #7691fe as the text (7.25:1)
  • AA: or shift the background to #b3b3b3 (4.59:1)
  • AAA: or shift the background to #dedede (7.16:1)

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

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

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

tool url/palettes/new/0129cb-9c9fc4-df7c4e-231f2d-e9eff1?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