Color

#0ea9e1

#0ea9e1
hex#0ea9e1
rgbrgb(14, 169, 225)
hslhsl(196, 88%, 47%)
oklchoklch(0.69 0.138 231.5)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3391

Colors that go with #0ea9e1

Charcoal, Tomato and Bronze 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 →

#e1470e

#0ee1b0 · #0e40e1

#e10ea9 · #a9e10e

Split-complementary

Open in tool →

#e10e40 · #e1b00e

#b00ee1 · #e1470e · #40e10e

Contrast

#0ea9e1 as textRatioAAAA largeAAAFix
Aaon white
2.7:1failfailfail
  • AA: use #0b7ea8 as the text (4.6:1)
  • AAA: use #085e7d as the text (7.22:1)
  • AA: or shift the background to #333333 (4.68:1)
  • AAA: or shift the background to #0f0f0f (7.1:1)
Aaon black
7.78:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0ea9e1 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0ea9e1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ea9e1
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 #0ea9e1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ea9e1-9cb5c4-df4e6e-1f232d-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