Color

#2a5151

#2a5151
hex#2a5151
rgbrgb(42, 81, 81)
hslhsl(180, 32%, 24%)
oklchoklch(0.406 0.044 195.5)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0697

Tints & shades

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

Harmonies

Complementary

Open in tool →

#512a2a

#2a513d · #2a3d51

#512a51 · #51512a

Split-complementary

Open in tool →

#512a3d · #513d2a

#3d2a51 · #512a2a · #3d512a

Contrast

#2a5151 as textRatioAAAA largeAAAFix
Aaon white
8.77:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #428080 as the text (4.63:1)
  • AAA: use #53a2a2 as the text (7.06:1)
  • AA: or shift the background to #bababa (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a5151 as the background.

Brands using this color

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

Fonts for this mood

#2a5151 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a5151
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 #2a5151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a5151-a2bbbe-d45994-1f272d-e9f1ed?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