Color

#387bc7

#387bc7
hex#387bc7
rgbrgb(56, 123, 199)
hslhsl(212, 56%, 50%)
oklchoklch(0.577 0.136 253.6)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1913

Colors that go with #387bc7

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 →

#c78438

#38c2c7 · #3d38c7

#c7387b · #7bc738

Split-complementary

Open in tool →

#c73d38 · #c2c738

#c738c2 · #c78438 · #38c73d

Contrast

#387bc7 as textRatioAAAA largeAAAFix
Aaon white
4.35:1failpassfail
  • AA: use #3778c3 as the text (4.53:1)
  • AAA: use #28588f as the text (7.28:1)
  • AA: or shift the background to #0a0a0a (4.55:1)
Aaon black
4.83:1passpassfail
  • AAA: use #689ad4 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #387bc7 as the background.

Brands using this color

Fonts for this mood

#387bc7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #387bc7
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 #387bc7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/387bc7-9caac4-df564e-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