Color

#0fb309

#0fb309
hex#0fb309
rgbrgb(15, 179, 9)
hslhsl(118, 90%, 37%)
oklchoklch(0.665 0.223 142.4)
Closest name: Green Glimmer (#00bb00)Relative luminance 0.3236

Colors that go with #0fb309

Taupe, Fuchsia and Medium Purple 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 →

#ae09b3

#64b309 · #09b359

#090fb3 · #b3090f

Split-complementary

Open in tool →

#5909b3 · #b30964

#0964b3 · #ae09b3 · #b35909

Contrast

#0fb309 as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #0b8807 as the text (4.63:1)
  • AAA: use #096605 as the text (7.21:1)
  • AA: or shift the background to #303030 (4.7:1)
  • AAA: or shift the background to #0a0a0a (7.04:1)
Aaon black
7.47:1passpasspassPasses 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 #0fb309 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 #0fb309
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 #0fb309 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0fb309-a2bea4-944edf-1f2d25-edf1e9?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