Color

#374aa9

#374aa9
hex#374aa9
rgbrgb(55, 74, 169)
hslhsl(230, 51%, 44%)
oklchoklch(0.45 0.153 270.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0857

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a99637

#3783a9 · #5d37a9

#a9374a · #4aa937

Split-complementary

Open in tool →

#a95d37 · #83a937

#a93783 · #a99637 · #37a95d

Contrast

#374aa9 as textRatioAAAA largeAAAFix
Aaon white
7.74:1passpasspassPasses AAA — no fix needed.
Aaon black
2.71:1failfailfail
  • AA: use #5d6fcb as the text (4.6:1)
  • AAA: use #8492d7 as the text (7.07:1)
  • AA: or shift the background to #c7c7c7 (4.58:1)
  • AAA: or shift the background to #f5f5f5 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #374aa9 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

#374aa9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #374aa9
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 #374aa9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/374aa9-9c9ec4-df814e-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