Color

#28ec0e

#28ec0e
hex#28ec0e
rgbrgb(40, 236, 14)
hslhsl(113, 89%, 49%)
oklchoklch(0.82 0.273 141.9)
Closest name: Becquerel (#4bec13)Relative luminance 0.6047

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d20eec

#97ec0e · #0eec63

#0e28ec · #ec0e28

Split-complementary

Open in tool →

#630eec · #ec0e97

#0e97ec · #d20eec · #ec630e

Contrast

#28ec0e as textRatioAAAA largeAAAFix
Aaon white
1.6:1failfailfail
  • AA: use #178708 as the text (4.66:1)
  • AAA: use #116506 as the text (7.27:1)
  • AA: or shift the background to #575757 (4.51:1)
  • AAA: or shift the background to #383838 (7.31:1)
Aaon black
13.09:1passpasspassPasses 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 #28ec0e as the background.

Brands using this color

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

mcpConnect your agent — build around #28ec0e
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 #28ec0e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28ec0e-a2bea2-884edf-1f2d24-eef1e9?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