Color

#388bc7

#388bc7
hex#388bc7
rgbrgb(56, 139, 199)
hslhsl(205, 56%, 50%)
oklchoklch(0.614 0.121 243.7)
Closest name: steelblue (#4682b4)Relative luminance 0.2343

Colors that go with #388bc7

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 →

#c77438

#38c7bb · #3844c7

#c7388b · #8bc738

Split-complementary

Open in tool →

#c73844 · #c7bb38

#bb38c7 · #c77438 · #44c738

Contrast

#388bc7 as textRatioAAAA largeAAAFix
Aaon white
3.69:1failpassfail
  • AA: use #317baf as the text (4.58:1)
  • AAA: use #255c83 as the text (7.15:1)
  • AA: or shift the background to #1c1c1c (4.61:1)
Aaon black
5.69:1passpassfail
  • AAA: use #549ccf as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #388bc7 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

#388bc7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #388bc7
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 #388bc7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/388bc7-9cafc4-df4e58-1f212d-e9f1f0?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