Color

#5a78f2

#5a78f2
hex#5a78f2
rgbrgb(90, 120, 242)
hslhsl(228, 85%, 65%)
oklchoklch(0.614 0.185 269.8)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2202

Colors that go with #5a78f2

Charcoal, Red and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f2d35a

#5ac4f2 · #875af2

#f25a78 · #78f25a

Split-complementary

Open in tool →

#f2875a · #c4f25a

#f25ac4 · #f2d35a · #5af287

Contrast

#5a78f2 as textRatioAAAA largeAAAFix
Aaon white
3.89:1failpassfail
  • AA: use #4769f0 as the text (4.62:1)
  • AAA: use #133eec as the text (7.17:1)
  • AA: or shift the background to #171717 (4.61:1)
Aaon black
5.4:1passpassfail
  • AAA: use #768ff4 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a78f2 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#5a78f2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a78f2
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5a78f2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a78f2-9c9fc4-df7c4e-231f2d-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