Color

#4276fa

#4276fa
hex#4276fa
rgbrgb(66, 118, 250)
hslhsl(223, 95%, 62%)
oklchoklch(0.604 0.205 264.7)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2102

Colors that go with #4276fa

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 →

#fac642

#42d2fa · #6a42fa

#fa4276 · #76fa42

Split-complementary

Open in tool →

#fa6a42 · #d2fa42

#fa42d2 · #fac642 · #42fa6a

Contrast

#4276fa as textRatioAAAA largeAAAFix
Aaon white
4.04:1failpassfail
  • AA: use #336bfa as the text (4.54:1)
  • AAA: use #0645e5 as the text (7.02:1)
  • AA: or shift the background to #141414 (4.56:1)
Aaon black
5.2:1passpassfail
  • AAA: use #6a93fb as the text (7.18:1)

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

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

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

tool url/palettes/new/4276fa-9ca3c4-df704e-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