Color

#3887d6

#3887d6
hex#3887d6
rgbrgb(56, 135, 214)
hslhsl(210, 66%, 53%)
oklchoklch(0.613 0.143 251.3)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2302

Colors that go with #3887d6

Charcoal, Copper and Amber 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 →

#d68738

#38d6d6 · #3838d6

#d63887 · #87d638

Split-complementary

Open in tool →

#d63838 · #d6d638

#d638d6 · #d68738 · #38d638

Contrast

#3887d6 as textRatioAAAA largeAAAFix
Aaon white
3.75:1failpassfail
  • AA: use #2978c7 as the text (4.56:1)
  • AAA: use #1e5994 as the text (7.21:1)
  • AA: or shift the background to #1c1c1c (4.55:1)
Aaon black
5.6:1passpassfail
  • AAA: use #5a9cdd as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3887d6 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

#3887d6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3887d6
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 #3887d6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3887d6-9cabc4-df514e-1f202d-e9f1f1?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