Color

#405dce

#405dce
hex#405dce
rgbrgb(64, 93, 206)
hslhsl(228, 59%, 53%)
oklchoklch(0.521 0.178 268.6)
Closest name: God of Rain (#4466cc)Relative luminance 0.1337

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ceb240

#40a3ce · #6b40ce

#ce405d · #5dce40

Split-complementary

Open in tool →

#ce6b40 · #a3ce40

#ce40a3 · #ceb240 · #40ce6b

Contrast

#405dce as textRatioAAAA largeAAAFix
Aaon white
5.71:1passpassfail
  • AAA: use #314dbf as the text (7.13:1)
Aaon black
3.67:1failpassfail
  • AA: use #556ed3 as the text (4.56:1)
  • AAA: use #8194df as the text (7.23:1)
  • AA: or shift the background to #e6e6e6 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #405dce 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

#405dce reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #405dce
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 #405dce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/405dce-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