Color

#3b7ced

#3b7ced
hex#3b7ced
rgbrgb(59, 124, 237)
hslhsl(218, 83%, 58%)
oklchoklch(0.605 0.183 260.6)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2146

Colors that go with #3b7ced

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 →

#edac3b

#3bd5ed · #533bed

#ed3b7c · #7ced3b

Split-complementary

Open in tool →

#ed533b · #d5ed3b

#ed3bd5 · #edac3b · #3bed53

Contrast

#3b7ced as textRatioAAAA largeAAAFix
Aaon white
3.97:1failpassfail
  • AA: use #2870eb as the text (4.56:1)
  • AAA: use #1251bf as the text (7.11:1)
  • AA: or shift the background to #171717 (4.52:1)
Aaon black
5.29:1passpassfail
  • AAA: use #6095f0 as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b7ced as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#3b7ced reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b7ced
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 #3b7ced and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b7ced-9ca6c4-df644e-201f2d-e9f0f1?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