Color

#407cdd

#407cdd
hex#407cdd
rgbrgb(64, 124, 221)
hslhsl(217, 70%, 56%)
oklchoklch(0.596 0.161 259.6)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2073

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dda140

#40cbdd · #5340dd

#dd407c · #7cdd40

Split-complementary

Open in tool →

#dd5340 · #cbdd40

#dd40cb · #dda140 · #40dd53

Contrast

#407cdd as textRatioAAAA largeAAAFix
Aaon white
4.08:1failpassfail
  • AA: use #3374db as the text (4.5:1)
  • AAA: use #1f55ad as the text (7.09:1)
  • AA: or shift the background to #141414 (4.51:1)
Aaon black
5.15:1passpassfail
  • AAA: use #6797e4 as the text (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 #407cdd 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

#407cdd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #407cdd
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 #407cdd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407cdd-9ca7c4-df624e-201f2d-e9f0f1?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