Color

#0ea5e9

#0ea5e9
hex#0ea5e9
rgbrgb(14, 165, 233)
hslhsl(199, 89%, 48%)
oklchoklch(0.685 0.148 237.3)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3289

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e7520d

#0de7bf · #0d35e7

#e70da2 · #a2e70d

Split-complementary

Open in tool →

#e70d35 · #e7bf0d

#bf0de7 · #e7520d · #35e70d

Contrast

#0ea5e9 as textRatioAAAA largeAAAFix
Aaon white
2.77:1failfailfail
  • AA: use #0a7db2 as the text (4.58:1)
  • AAA: use #085f87 as the text (7.01:1)
  • AA: or shift the background to #333333 (4.56:1)
  • AAA: or shift the background to #0d0d0d (7.01:1)
Aaon black
7.58:1passpasspassPasses 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 #0ea5e9 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

#0ea5e9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0ea5e9
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0ea5e9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0ea5e9-9cb3c4-df4e66-1f232d-e9f1f0?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