Color

#0da540

#0da540
hex#0da540
rgbrgb(13, 165, 64)
hslhsl(140, 85%, 35%)
oklchoklch(0.63 0.182 147.4)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2737

Colors that go with #0da540

Charcoal, Blue 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 →

#a50d73

#27a50d · #0da58c

#400da5 · #a5400d

Split-complementary

Open in tool →

#8c0da5 · #a50d27

#0d27a5 · #a50d73 · #a58c0d

Contrast

#0da540 as textRatioAAAA largeAAAFix
Aaon white
3.24:1failpassfail
  • AA: use #0b8935 as the text (4.52:1)
  • AAA: use #086326 as the text (7.44:1)
  • AA: or shift the background to #262626 (4.66:1)
Aaon black
6.47:1passpassfail
  • AAA: use #0eaf44 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0da540 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #0da540
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 #0da540 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0da540-a2beaf-c259d4-1f2d2a-ebf1e9?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