Color

#274efc

#274efc
hex#274efc
rgbrgb(39, 78, 252)
hslhsl(229, 97%, 57%)
oklchoklch(0.525 0.259 266.3)
Closest name: C64 Blue (#003aff)Relative luminance 0.1291

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fcd527

#27b8fc · #6a27fc

#fc274e · #4efc27

Split-complementary

Open in tool →

#fc6a27 · #b8fc27

#fc27b8 · #fcd527 · #27fc6a

Contrast

#274efc as textRatioAAAA largeAAAFix
Aaon white
5.86:1passpassfail
  • AAA: use #0e39fb as the text (7.01:1)
Aaon black
3.58:1failpassfail
  • AA: use #4567fc as the text (4.6:1)
  • AAA: use #7790fd as the text (7.19:1)
  • AA: or shift the background to #e3e3e3 (4.57:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/274efc-9c9fc4-df7e4e-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