Color

#53c021

#53c021
hex#53c021
rgbrgb(83, 192, 33)
hslhsl(101, 71%, 44%)
oklchoklch(0.716 0.211 138.5)
Closest name: Frog (#58bc08)Relative luminance 0.3965

Colors that go with #53c021

Charcoal, Royal Blue and Taupe 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 →

#8d21c0

#a3c021 · #21c03e

#2153c0 · #c02153

Split-complementary

Open in tool →

#3e21c0 · #c021a3

#21a3c0 · #8d21c0 · #c03e21

Contrast

#53c021 as textRatioAAAA largeAAAFix
Aaon white
2.35:1failfailfail
  • AA: use #3a8717 as the text (4.51:1)
  • AAA: use #2b6411 as the text (7.16:1)
  • AA: or shift the background to #3d3d3d (4.62:1)
  • AAA: or shift the background to #1f1f1f (7.01:1)
Aaon black
8.93:1passpasspassPasses 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 #53c021 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 #53c021
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 #53c021 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/53c021-a7bea2-6b4edf-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