Color

#239ba4

#239ba4
hex#239ba4
rgbrgb(35, 155, 164)
hslhsl(184, 65%, 39%)
oklchoklch(0.631 0.1 202.7)
Closest name: Baltic (#279d9f)Relative luminance 0.2648

Colors that go with #239ba4

Charcoal, Red and Cobalt Blue 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 #239ba4

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a42b23

#23a46c · #235ba4

#a4239b · #9ba423

Split-complementary

Open in tool →

#a4235b · #a46c23

#6c23a4 · #a42b23 · #5ba423

Contrast

#239ba4 as textRatioAAAA largeAAAFix
Aaon white
3.34:1failpassfail
  • AA: use #1d8087 as the text (4.68:1)
  • AAA: use #156065 as the text (7.26:1)
  • AA: or shift the background to #262626 (4.54:1)
Aaon black
6.3:1passpassfail
  • AAA: use #25a7b1 as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #239ba4 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

#239ba4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #239ba4
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 #239ba4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/239ba4-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