Color

#423ffd

#423ffd
hex#423ffd
rgbrgb(66, 63, 253)
hslhsl(241, 98%, 62%)
oklchoklch(0.517 0.268 272.6)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1181

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fafd3f

#3f9bfd · #a13ffd

#fd423f · #3ffd42

Split-complementary

Open in tool →

#fda13f · #9bfd3f

#fd3f9b · #fafd3f · #3ffda1

Contrast

#423ffd as textRatioAAAA largeAAAFix
Aaon white
6.25:1passpassfail
  • AAA: use #3330fd as the text (7.04:1)
Aaon black
3.36:1failpassfail
  • AA: use #6562fd as the text (4.72:1)
  • AAA: use #8d8bfe as the text (7.26:1)
  • AA: or shift the background to #dbdbdb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #423ffd 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

#423ffd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #423ffd
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 #423ffd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/423ffd-a19cc4-df9b4e-261f2d-e9edf1?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