Color

#4276f0

#4276f0
hex#4276f0
rgbrgb(66, 118, 240)
hslhsl(222, 85%, 60%)
oklchoklch(0.597 0.192 264.1)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2041

Colors that go with #4276f0

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 →

#f0bc42

#42cdf0 · #6542f0

#f04276 · #76f042

Split-complementary

Open in tool →

#f06542 · #cdf042

#f042cd · #f0bc42 · #42f065

Contrast

#4276f0 as textRatioAAAA largeAAAFix
Aaon white
4.13:1failpassfail
  • AA: use #346cef as the text (4.63:1)
  • AAA: use #114ad0 as the text (7.21:1)
  • AA: or shift the background to #121212 (4.53:1)
Aaon black
5.08:1passpassfail
  • AAA: use #6d95f3 as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4276f0 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

#4276f0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4276f0
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 #4276f0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4276f0-9ca3c4-df6e4e-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