Color

#ceef15

#ceef15
hex#ceef15
rgbrgb(206, 239, 21)
hslhsl(69, 87%, 51%)
oklchoklch(0.897 0.209 119.4)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7491

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3615ef

#efa315 · #61ef15

#15ceef · #ef15ce

Split-complementary

Open in tool →

#1561ef · #a315ef

#15efa3 · #3615ef · #ef1561

Contrast

#ceef15 as textRatioAAAA largeAAAFix
Aaon white
1.31:1failfailfail
  • AA: use #6b7c09 as the text (4.65:1)
  • AAA: use #525f07 as the text (7:1)
  • AA: or shift the background to #636363 (4.57:1)
  • AAA: or shift the background to #474747 (7.07:1)
Aaon black
15.98:1passpasspassPasses 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 #ceef15 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 #ceef15
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 #ceef15 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ceef15-b7bea2-4e7edf-252d1f-f1eee9?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