Color

#423bab

#423bab
hex#423bab
rgbrgb(66, 59, 171)
hslhsl(244, 49%, 45%)
oklchoklch(0.432 0.172 279.1)
Closest name: Blueberry (#464196)Relative luminance 0.0723

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a3ab3b

#3b6bab · #7a3bab

#ab423b · #3bab42

Split-complementary

Open in tool →

#ab7a3b · #6bab3b

#ab3b6b · #a3ab3b · #3bab7a

Contrast

#423bab as textRatioAAAA largeAAAFix
Aaon white
8.59:1passpasspassPasses AAA — no fix needed.
Aaon black
2.45:1failfailfail
  • AA: use #716bcc as the text (4.68:1)
  • AAA: use #928dd8 as the text (7.02:1)
  • AA: or shift the background to #bdbdbd (4.57:1)
  • AAA: or shift the background to #e8e8e8 (7.01:1)

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

#423bab reads as cool, modern. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/423bab-a39cc4-dfa24e-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