Color

#274eaa

#274eaa
hex#274eaa
rgbrgb(39, 78, 170)
hslhsl(222, 63%, 41%)
oklchoklch(0.452 0.155 263.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0878

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa8327

#2790aa · #4127aa

#aa274e · #4eaa27

Split-complementary

Open in tool →

#aa4127 · #90aa27

#aa2790 · #aa8327 · #27aa41

Contrast

#274eaa as textRatioAAAA largeAAAFix
Aaon white
7.62:1passpasspassPasses AAA — no fix needed.
Aaon black
2.76:1failfailfail
  • AA: use #4873d5 as the text (4.69:1)
  • AAA: use #7696e0 as the text (7.21:1)
  • AA: or shift the background to #c7c7c7 (4.51:1)
  • AAA: or shift the background to #f7f7f7 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #274eaa as the background.

Brands using this color

Fonts for this mood

#274eaa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #274eaa
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 #274eaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/274eaa-9ca3c4-df6e4e-211f2d-e9eff1?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