Color

#404dc4

#404dc4
hex#404dc4
rgbrgb(64, 77, 196)
hslhsl(234, 53%, 51%)
oklchoklch(0.483 0.184 272.7)
Closest name: Blurple (#5539cc)Relative luminance 0.1038

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c4b740

#408fc4 · #7540c4

#c4404d · #4dc440

Split-complementary

Open in tool →

#c47540 · #8fc440

#c4408f · #c4b740 · #40c475

Contrast

#404dc4 as textRatioAAAA largeAAAFix
Aaon white
6.83:1passpassfail
  • AAA: use #3c49c3 as the text (7.16:1)
Aaon black
3.08:1failpassfail
  • AA: use #636ecf as the text (4.66:1)
  • AAA: use #8a92db as the text (7.22:1)
  • AA: or shift the background to #d4d4d4 (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 #404dc4 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

#404dc4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #404dc4
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 #404dc4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404dc4-9d9cc4-df8a4e-241f2d-e9eef1?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