Color

#15efae

#15efae
hex#15efae
rgbrgb(21, 239, 174)
hslhsl(162, 87%, 51%)
oklchoklch(0.844 0.176 164.6)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.6495

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef1557

#15ef41 · #15c3ef

#ae15ef · #efae15

Split-complementary

Open in tool →

#ef15c3 · #ef4115

#4115ef · #ef1557 · #c3ef15

Contrast

#15efae as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #098660 as the text (4.57:1)
  • AAA: use #076448 as the text (7.18:1)
  • AA: or shift the background to #595959 (4.67:1)
  • AAA: or shift the background to #3d3d3d (7.24:1)
Aaon black
13.99:1passpasspassPasses 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 #15efae 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 #15efae
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 #15efae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15efae-a2beb9-d459b9-1f2b2d-e9f1eb?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