Color

#58e421

#58e421
hex#58e421
rgbrgb(88, 228, 33)
hslhsl(103, 78%, 51%)
oklchoklch(0.81 0.248 139.4)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5767

Colors that go with #58e421

Deep Sky Blue, Taupe and Violet 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 →

#ac21e4

#b9e421 · #21e44b

#2158e4 · #e42158

Split-complementary

Open in tool →

#4b21e4 · #e421b9

#21b9e4 · #ac21e4 · #e44b21

Contrast

#58e421 as textRatioAAAA largeAAAFix
Aaon white
1.68:1failfailfail
  • AA: use #318410 as the text (4.73:1)
  • AAA: use #25640c as the text (7.22:1)
  • AA: or shift the background to #545454 (4.52:1)
  • AAA: or shift the background to #363636 (7.21:1)
Aaon black
12.53:1passpasspassPasses 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 #58e421 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 #58e421
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 #58e421 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/58e421-a6bea2-704edf-1f2d21-eff1e9?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