brandsweets

Color

#3fa258

#3fa258
hex#3fa258
rgbrgb(63, 162, 88)
hslhsl(135, 44%, 44%)
oklchoklch(0.636 0.143 149)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.276
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
3fa258a23f89

#a23f89

Analogous

Open in tool →
3fa25858a23f3fa289

#58a23f · #3fa289

Triadic

Open in tool →
3fa258583fa2a2583f

#583fa2 · #a2583f

Split-complementary

Open in tool →
3fa258893fa2a23f58

#893fa2 · #a23f58

Tetradic

Open in tool →
3fa2583f58a2a23f89a2893f

#3f58a2 · #a23f89 · #a2893f

Contrast

#3fa258 as textRatioAAAA largeAAAFix
Aaon white
3.22:1failpassfail
  • AA: use #338448 as the text (4.63:1)
  • AAA: use #276336 as the text (7.18:1)
  • AA: or shift the background to #292929 (4.52:1)
Aaon black
6.52:1passpassfail
  • AAA: use #42a95b as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fa258 as the background.

Brands using this color

mcpConnect your agent — build around #3fa258
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 #3fa258 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa258-a2beac-b759d4-1f2d29-ebf1e9?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