brandsweets

Color

#21ca75

#21ca75
hex#21ca75
rgbrgb(33, 202, 117)
hslhsl(150, 72%, 46%)
oklchoklch(0.739 0.178 154.3)
Closest name: Battletoad (#11cc55)Relative luminance 0.4385
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
21ca75ca2175

#ca2175

Analogous

Open in tool →
21ca7521ca2121caca

#21ca21 · #21caca

Triadic

Open in tool →
21ca757521caca7521

#7521ca · #ca7521

Split-complementary

Open in tool →
21ca75ca21caca2121

#ca21ca · #ca2121

Tetradic

Open in tool →
21ca752121caca2175caca21

#2121ca · #ca2175 · #caca21

Contrast

#21ca75 as textRatioAAAA largeAAAFix
Aaon white
2.15:1failfailfail
  • AA: use #15844d as the text (4.73:1)
  • AAA: use #10653b as the text (7.13:1)
  • AA: or shift the background to #424242 (4.68:1)
  • AAA: or shift the background to #262626 (7.04:1)
Aaon black
9.77:1passpasspassPasses 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 #21ca75 as the background.

Brands using this color

mcpConnect your agent — build around #21ca75
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 #21ca75 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21ca75-a2beb3-d459d2-1f2d2c-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