Color

#0ea4b4

#0ea4b4
hex#0ea4b4
rgbrgb(14, 164, 180)
hslhsl(186, 86%, 38%)
oklchoklch(0.658 0.111 207.2)
Closest name: Baltic (#279d9f)Relative luminance 0.2994

Colors that go with #0ea4b4

Charcoal, Orange Red 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.

Real palettes that use #0ea4b4

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b41e0e

#0eb472 · #0e50b4

#b40ea4 · #a4b40e

Split-complementary

Open in tool →

#b40e50 · #b4720e

#720eb4 · #b41e0e · #50b40e

Contrast

#0ea4b4 as textRatioAAAA largeAAAFix
Aaon white
3.01:1failpassfail
  • AA: use #0b818e as the text (4.62:1)
  • AAA: use #085f68 as the text (7.38:1)
  • AA: or shift the background to #2e2e2e (4.52:1)
Aaon black
6.99:1passpassfail
  • AAA: use #0ea8b9 as the text (7.32:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0ea4b4 as the background.

Brands using this color

Fonts for this mood

#0ea4b4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ea4b4
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 #0ea4b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ea4b4-a2b8be-df4e86-1f262d-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