Color

#1d0dfd

#1d0dfd
hex#1d0dfd
rgbrgb(29, 13, 253)
hslhsl(244, 98%, 52%)
oklchoklch(0.459 0.304 266.7)
Closest name: blue (#0000ff)Relative luminance 0.0764

Tints & shades

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

Harmonies

Complementary

Open in tool →

#edfd0d

#0d75fd · #950dfd

#fd1d0d · #0dfd1d

Split-complementary

Open in tool →

#fd950d · #75fd0d

#fd0d75 · #edfd0d · #0dfd95

Contrast

#1d0dfd as textRatioAAAA largeAAAFix
Aaon white
8.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #685dfd as the text (4.57:1)
  • AAA: use #938bfe as the text (7.36:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d0dfd as the background.

Brands using this color

Fonts for this mood

#1d0dfd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d0dfd
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 #1d0dfd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d0dfd-a39cc4-dfa24e-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