Color

#4078f2

#4078f2
hex#4078f2
rgbrgb(64, 120, 242)
hslhsl(221, 87%, 60%)
oklchoklch(0.602 0.193 263.2)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2093

Colors that go with #4078f2

Charcoal, Crimson and Copper 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 →

#f2ba40

#40d1f2 · #6140f2

#f24078 · #78f240

Split-complementary

Open in tool →

#f26140 · #d1f240

#f240d1 · #f2ba40 · #40f261

Contrast

#4078f2 as textRatioAAAA largeAAAFix
Aaon white
4.05:1failpassfail
  • AA: use #326ef1 as the text (4.53:1)
  • AAA: use #0f4cd2 as the text (7.04:1)
  • AA: or shift the background to #141414 (4.55:1)
Aaon black
5.19:1passpassfail
  • AAA: use #6693f4 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 #4078f2 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

#4078f2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4078f2
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 #4078f2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4078f2-9ca4c4-df6b4e-211f2d-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