Color

#2d4253

#2d4253
hex#2d4253
rgbrgb(45, 66, 83)
hslhsl(207, 30%, 25%)
oklchoklch(0.369 0.04 243.5)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0508

Tints & shades

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

Harmonies

Complementary

Open in tool →

#533e2d

#2d5351 · #2d2f53

#532d42 · #42532d

Split-complementary

Open in tool →

#532d2f · #53512d

#512d53 · #533e2d · #2f532d

Contrast

#2d4253 as textRatioAAAA largeAAAFix
Aaon white
10.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.02:1failfailfail
  • AA: use #527998 as the text (4.55:1)
  • AAA: use #779ab6 as the text (7.08:1)
  • AA: or shift the background to #ababab (4.54:1)
  • AAA: or shift the background to #d4d4d4 (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 #2d4253 as the background.

Brands using this color

Fonts for this mood

#2d4253 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d4253
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 #2d4253 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d4253-9cadc4-df4e53-1f212d-e9f1f1?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