Color

#424cd7

#424cd7
hex#424cd7
rgbrgb(66, 76, 215)
hslhsl(236, 65%, 55%)
oklchoklch(0.499 0.209 272.9)
Closest name: Blurple (#5539cc)Relative luminance 0.1123

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d7cd42

#4296d7 · #8242d7

#d7424c · #4cd742

Split-complementary

Open in tool →

#d78242 · #96d742

#d74296 · #d7cd42 · #42d782

Contrast

#424cd7 as textRatioAAAA largeAAAFix
Aaon white
6.47:1passpassfail
  • AAA: use #3944d5 as the text (7.09:1)
Aaon black
3.25:1failpassfail
  • AA: use #5f68dd as the text (4.51:1)
  • AAA: use #898fe6 as the text (7.14:1)
  • AA: or shift the background to #d9d9d9 (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 #424cd7 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

#424cd7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424cd7
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 #424cd7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424cd7-9e9cc4-df8f4e-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