Color

#2b474a

#2b474a
hex#2b474a
rgbrgb(43, 71, 74)
hslhsl(186, 26%, 23%)
oklchoklch(0.377 0.034 204.4)
Closest name: Arsenic (#3b444b)Relative luminance 0.0551

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4a2e2b

#2b4a3e · #2b384a

#4a2b47 · #474a2b

Split-complementary

Open in tool →

#4a2b38 · #4a3e2b

#3e2b4a · #4a2e2b · #384a2b

Contrast

#2b474a as textRatioAAAA largeAAAFix
Aaon white
9.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #4d7e84 as the text (4.63:1)
  • AAA: use #68a0a6 as the text (7.17:1)
  • AA: or shift the background to #b0b0b0 (4.6:1)
  • AAA: or shift the background to #d9d9d9 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b474a as the background.

Brands using this color

Fonts for this mood

#2b474a reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b474a
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 #2b474a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b474a-a2b8be-df4e86-1f262d-e9f1ee?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