Color

#138dae

#138dae
hex#138dae
rgbrgb(19, 141, 174)
hslhsl(193, 80%, 38%)
oklchoklch(0.598 0.108 222.8)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2224

Colors that go with #138dae

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 →

#ae3513

#13ae82 · #133fae

#ae138d · #8dae13

Split-complementary

Open in tool →

#ae133f · #ae8213

#8213ae · #ae3513 · #3fae13

Contrast

#138dae as textRatioAAAA largeAAAFix
Aaon white
3.85:1failpassfail
  • AA: use #117e9c as the text (4.68:1)
  • AAA: use #0d6077 as the text (7.1:1)
  • AA: or shift the background to #1a1a1a (4.52:1)
Aaon black
5.45:1passpassfail
  • AAA: use #16a3ca as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #138dae as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#138dae reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #138dae
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 #138dae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/138dae-a2b5be-df4e75-1f242d-e9f1ef?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