Color

#2783ce

#2783ce
hex#2783ce
rgbrgb(39, 131, 206)
hslhsl(207, 68%, 48%)
oklchoklch(0.594 0.142 248.1)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.2112

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ce7227

#27cec5 · #272fce

#ce2783 · #83ce27

Split-complementary

Open in tool →

#ce272f · #cec527

#c527ce · #ce7227 · #2fce27

Contrast

#2783ce as textRatioAAAA largeAAAFix
Aaon white
4.02:1failpassfail
  • AA: use #2478bc as the text (4.68:1)
  • AAA: use #1b5a8d as the text (7.26:1)
  • AA: or shift the background to #141414 (4.58:1)
Aaon black
5.22:1passpassfail
  • AAA: use #4b9bdd as the text (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 #2783ce as the background.

Brands using this color

Fonts for this mood

#2783ce reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2783ce
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 #2783ce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2783ce-9cadc4-df4e53-1f212d-e9f1f1?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