Color

#374bbe

#374bbe
hex#374bbe
rgbrgb(55, 75, 190)
hslhsl(231, 55%, 48%)
oklchoklch(0.47 0.181 270.3)
Closest name: Denim (#2243b6)Relative luminance 0.0956

Tints & shades

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

Harmonies

Complementary

Open in tool →

#beaa37

#378fbe · #6637be

#be374b · #4bbe37

Split-complementary

Open in tool →

#be6637 · #8fbe37

#be378f · #beaa37 · #37be66

Contrast

#374bbe as textRatioAAAA largeAAAFix
Aaon white
7.21:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #5d6ed0 as the text (4.61:1)
  • AAA: use #8492db as the text (7.12:1)
  • AA: or shift the background to #cfcfcf (4.63:1)
  • AAA: or shift the background to #fcfcfc (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #374bbe 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

#374bbe reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #374bbe
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 #374bbe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/374bbe-9c9ec4-df834e-231f2d-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