brandsweets

Named color

Chartreuse

#c1f80a
hex#c1f80a
rgbrgb(193, 248, 10)
hslhsl(74, 94%, 51%)
oklchoklch(0.908 0.225 124.4)
Relative luminance 0.7849
Vivid
Open in palette toolCheck contrast

Chartreuse on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 1 public brand that uses it and the palettes it appears in.

Tints & shades

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

Harmonies

Complementary

Open in tool →
c1f80a430df8

#430df8

Analogous

Open in tool →
c1f80af8b90d4bf80d

#f8b90d · #4bf80d

Triadic

Open in tool →
c1f80a0dc1f8f80dc1

#0dc1f8 · #f80dc1

Split-complementary

Open in tool →
c1f80a0d4bf8b90df8

#0d4bf8 · #b90df8

Tetradic

Open in tool →
c1f80a0df8b9430df8f80d4b

#0df8b9 · #430df8 · #f80d4b

Contrast

Chartreuse as textRatioAAAA largeAAAFix
Aaon white
1.26:1failfailfail
  • AA: use #607c04 as the text (4.79:1)
  • AAA: use #495e03 as the text (7.28:1)
  • AA: or shift the background to #666666 (4.57:1)
  • AAA: or shift the background to #4a4a4a (7.05:1)
Aaon black
16.7:1passpasspassPasses 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 Chartreuse as the background.

Brands using this color

mcpConnect your agent — build around Chartreuse
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 #c1f80a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c1f80a-b4bea2-4e72df-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