Color

#2b78ca

#2b78ca
hex#2b78ca
rgbrgb(43, 120, 202)
hslhsl(211, 65%, 48%)
oklchoklch(0.568 0.147 253.1)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1821

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ca7d2b

#2bc7ca · #2d2bca

#ca2b78 · #78ca2b

Split-complementary

Open in tool →

#ca2d2b · #c7ca2b

#ca2bc7 · #ca7d2b · #2bca2d

Contrast

#2b78ca as textRatioAAAA largeAAAFix
Aaon white
4.52:1passpassfail
  • AAA: use #205a97 as the text (7.07:1)
Aaon black
4.64:1passpassfail
  • AAA: use #5b99dc 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 #2b78ca as the background.

Brands using this color

Fonts for this mood

#2b78ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b78ca
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 #2b78ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b78ca-9cabc4-df534e-1f202d-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