Color

#372fa7

#372fa7
hex#372fa7
rgbrgb(55, 47, 167)
hslhsl(244, 56%, 42%)
oklchoklch(0.401 0.184 277.1)
Closest name: Bluebell (#333399)Relative luminance 0.0564

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9fa72f

#2f63a7 · #732fa7

#a7372f · #2fa737

Split-complementary

Open in tool →

#a7732f · #63a72f

#a72f63 · #9fa72f · #2fa773

Contrast

#372fa7 as textRatioAAAA largeAAAFix
Aaon white
9.87:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #6f68d4 as the text (4.61:1)
  • AAA: use #918cde as the text (7.01:1)
  • AA: or shift the background to #b0b0b0 (4.55:1)
  • AAA: or shift the background to #dbdbdb (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #372fa7 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

#372fa7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #372fa7
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 #372fa7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/372fa7-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