Color

#372fca

#372fca
hex#372fca
rgbrgb(55, 47, 202)
hslhsl(243, 62%, 49%)
oklchoklch(0.437 0.226 274)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0711

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c3ca2f

#2f75ca · #852fca

#ca372f · #2fca37

Split-complementary

Open in tool →

#ca852f · #75ca2f

#ca2f75 · #c3ca2f · #2fca85

Contrast

#372fca as textRatioAAAA largeAAAFix
Aaon white
8.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.42:1failfailfail
  • AA: use #6c66db as the text (4.56:1)
  • AAA: use #948fe5 as the text (7.32:1)
  • AA: or shift the background to #bdbdbd (4.62:1)
  • AAA: or shift the background to #e8e8e8 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #372fca 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

#372fca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #372fca
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 #372fca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/372fca-a39cc4-dfa04e-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