Color

#2d404d

#2d404d
hex#2d404d
rgbrgb(45, 64, 77)
hslhsl(204, 26%, 24%)
oklchoklch(0.361 0.033 238.8)
Closest name: Cold and Dark (#154250)Relative luminance 0.0476

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d3a2d

#2d4d4a · #2d304d

#4d2d40 · #404d2d

Split-complementary

Open in tool →

#4d2d30 · #4d4a2d

#4a2d4d · #4d3a2d · #304d2d

Contrast

#2d404d as textRatioAAAA largeAAAFix
Aaon white
10.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #557991 as the text (4.53:1)
  • AAA: use #7b9cb2 as the text (7.24:1)
  • AA: or shift the background to #a8a8a8 (4.52:1)
  • AAA: or shift the background to #d1d1d1 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d404d 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

#2d404d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d404d
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 #2d404d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d404d-9cafc4-df4e5a-1f222d-e9f1f0?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