Color

#388db7

#388db7
hex#388db7
rgbrgb(56, 141, 183)
hslhsl(200, 53%, 47%)
oklchoklch(0.61 0.103 233.6)
Closest name: steelblue (#4682b4)Relative luminance 0.2331

Colors that go with #388db7

Charcoal, Copper and Crimson 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 →

#b76338

#38b7a2 · #384eb7

#b7388d · #8db738

Split-complementary

Open in tool →

#b7384e · #b7a238

#a238b7 · #b76338 · #4eb738

Contrast

#388db7 as textRatioAAAA largeAAAFix
Aaon white
3.71:1failpassfail
  • AA: use #327ea4 as the text (4.51:1)
  • AAA: use #255d79 as the text (7.19:1)
  • AA: or shift the background to #1c1c1c (4.59:1)
Aaon black
5.66:1passpassfail
  • AAA: use #4c9ec8 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 #388db7 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

#388db7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #388db7
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 #388db7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/388db7-9cb2c4-df4e64-1f232d-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