Color

#c1eb19

#c1eb19
hex#c1eb19
rgbrgb(193, 235, 25)
hslhsl(72, 84%, 51%)
oklchoklch(0.879 0.209 122)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7082

Colors that go with #c1eb19

Blue, Crimson and Red lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4319eb

#ebac19 · #58eb19

#19c1eb · #eb19c1

Split-complementary

Open in tool →

#1958eb · #ac19eb

#19ebac · #4319eb · #eb1958

Contrast

#c1eb19 as textRatioAAAA largeAAAFix
Aaon white
1.38:1failfailfail
  • AA: use #687f0b as the text (4.54:1)
  • AAA: use #4d5e08 as the text (7.19:1)
  • AA: or shift the background to #5e5e5e (4.68:1)
  • AAA: or shift the background to #424242 (7.26:1)
Aaon black
15.16:1passpasspassPasses 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 #c1eb19 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 #c1eb19
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #c1eb19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c1eb19-b5bea2-4e77df-242d1f-f1efe9?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