Color

#15f454

#15f454
hex#15f454
rgbrgb(21, 244, 84)
hslhsl(137, 91%, 52%)
oklchoklch(0.843 0.254 146)
Closest name: Cathode Green (#00ff55)Relative luminance 0.655

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f415b5

#45f415 · #15f4c4

#5415f4 · #f45415

Split-complementary

Open in tool →

#c415f4 · #f41545

#1545f4 · #f415b5 · #f4c415

Contrast

#15f454 as textRatioAAAA largeAAAFix
Aaon white
1.49:1failfailfail
  • AA: use #06882b as the text (4.6:1)
  • AAA: use #056620 as the text (7.17:1)
  • AA: or shift the background to #595959 (4.7:1)
  • AAA: or shift the background to #3d3d3d (7.29:1)
Aaon black
14.1:1passpasspassPasses 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 #15f454 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 #15f454
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 #15f454 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15f454-a2bead-bb59d4-1f2d29-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