brandsweets

Color

#2a78cb

#2a78cb
hex#2a78cb
rgbrgb(42, 120, 203)
hslhsl(211, 66%, 48%)
oklchoklch(0.568 0.148 253.2)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1824
CoolVividTechnicalModern
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
2a78cbcb7d2a

#cb7d2a

Analogous

Open in tool →
2a78cb2ac8cb2c2acb

#2ac8cb · #2c2acb

Triadic

Open in tool →
2a78cbcb2a7878cb2a

#cb2a78 · #78cb2a

Split-complementary

Open in tool →
2a78cbcb2c2ac8cb2a

#cb2c2a · #c8cb2a

Tetradic

Open in tool →
2a78cbcb2ac8cb7d2a2acb2c

#cb2ac8 · #cb7d2a · #2acb2c

Contrast

#2a78cb as textRatioAAAA largeAAAFix
Aaon white
4.52:1passpassfail
  • AAA: use #1f5a98 as the text (7.06:1)
Aaon black
4.65:1passpassfail
  • AAA: use #5a99dd as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a78cb as the background.

Brands using this color

Fonts for this mood

#2a78cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →
mcpConnect your agent — build around #2a78cb
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 #2a78cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a78cb-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