Named color

Cactus

#5b6f55
hex#5b6f55
rgbrgb(91, 111, 85)
hslhsl(106, 13%, 38%)
oklchoklch(0.518 0.047 138.5)
Relative luminance 0.1425

Cactus 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 curated palettes it appears in and any public brand that adopts it.

Colors that go with Cactus

Slate Blue, Champagne and Charcoal 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.

Real palettes that use Cactus

Tints & shades

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

Harmonies

Complementary

Open in tool →

#68546d

#676d54 · #546d5b

#545a6d · #6d545a

Split-complementary

Open in tool →

#5b546d · #6d5467

#54676d · #68546d · #6d5b54

Contrast

Cactus as textRatioAAAA largeAAAFix
Aaon white
5.45:1passpassfail
  • AAA: use #4c5c47 as the text (7.17:1)
Aaon black
3.85:1failpassfail
  • AA: use #667c5f as the text (4.61:1)
  • AAA: use #879d80 as the text (7.16:1)
  • AA: or shift the background to #ebebeb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with Cactus as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around Cactus
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 #5b6f55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b6f55-a5bea2-774edf-1f2d22-eff1e9?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