Color

#28f090

#28f090
hex#28f090
rgbrgb(40, 240, 144)
hslhsl(151, 87%, 55%)
oklchoklch(0.842 0.199 155.2)
Closest name: Emerald Ice Palace (#2af589)Relative luminance 0.6478

Colors that go with #28f090

Deep Sky Blue, Violet and Charcoal 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 →

#f02889

#28f02c · #28edf0

#9028f0 · #f09028

Split-complementary

Open in tool →

#f028ed · #f02c28

#2c28f0 · #f02889 · #edf028

Contrast

#28f090 as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #098649 as the text (4.65:1)
  • AAA: use #076437 as the text (7.27:1)
  • AA: or shift the background to #595959 (4.66:1)
  • AAA: or shift the background to #3d3d3d (7.22:1)
Aaon black
13.96:1passpasspassPasses 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 #28f090 as the background.

Brands using this color

mcpConnect your agent — build around #28f090
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 #28f090 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28f090-a2beb4-d459d0-1f2d2c-e9f1ea?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