Color

#1d55cd

#1d55cd
hex#1d55cd
rgbrgb(29, 85, 205)
hslhsl(221, 75%, 46%)
oklchoklch(0.492 0.195 262.7)
Closest name: Denim (#2243b6)Relative luminance 0.1117

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd961d

#1dadcd · #3e1dcd

#cd1d55 · #55cd1d

Split-complementary

Open in tool →

#cd3e1d · #adcd1d

#cd1dad · #cd961d · #1dcd3e

Contrast

#1d55cd as textRatioAAAA largeAAAFix
Aaon white
6.5:1passpassfail
  • AAA: use #1b4fc0 as the text (7.18:1)
Aaon black
3.23:1failpassfail
  • AA: use #3b70e3 as the text (4.61:1)
  • AAA: use #6c94ea as the text (7.06:1)
  • AA: or shift the background to #d9d9d9 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d55cd as the background.

Brands using this color

Fonts for this mood

#1d55cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d55cd
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 #1d55cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d55cd-9ca4c4-df6b4e-211f2d-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