Color

#389ca3

#389ca3
hex#389ca3
rgbrgb(56, 156, 163)
hslhsl(184, 49%, 43%)
oklchoklch(0.638 0.091 201.7)
Closest name: Baltic (#279d9f)Relative luminance 0.2726

Colors that go with #389ca3

Charcoal, Red 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.

Real palettes that use #389ca3

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a33f38

#38a375 · #3866a3

#a3389c · #9ca338

Split-complementary

Open in tool →

#a33866 · #a37538

#7538a3 · #a33f38 · #66a338

Contrast

#389ca3 as textRatioAAAA largeAAAFix
Aaon white
3.25:1failpassfail
  • AA: use #2e7f85 as the text (4.68:1)
  • AAA: use #225e63 as the text (7.37:1)
  • AA: or shift the background to #262626 (4.65:1)
Aaon black
6.45:1passpassfail
  • AAA: use #3ba3ab as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #389ca3 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

#389ca3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #389ca3
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 #389ca3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/389ca3-a2b9be-df4e8a-1f262d-e9f1ee?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