Color

#407dbf

#407dbf
hex#407dbf
rgbrgb(64, 125, 191)
hslhsl(211, 50%, 50%)
oklchoklch(0.58 0.12 252.2)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1952

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf8240

#40bdbf · #4240bf

#bf407d · #7dbf40

Split-complementary

Open in tool →

#bf4240 · #bdbf40

#bf40bd · #bf8240 · #40bf42

Contrast

#407dbf as textRatioAAAA largeAAAFix
Aaon white
4.28:1failpassfail
  • AA: use #3d78b8 as the text (4.59:1)
  • AAA: use #2e5a8a as the text (7.13:1)
  • AA: or shift the background to #0d0d0d (4.54:1)
Aaon black
4.9:1passpassfail
  • AAA: use #6a9acd 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 #407dbf 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

#407dbf reads as cool, modern. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/407dbf-9cabc4-df534e-1f202d-e9f1f1?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