Color

#37535d

#37535d
hex#37535d
rgbrgb(55, 83, 93)
hslhsl(196, 26%, 29%)
oklchoklch(0.424 0.037 222.3)
Closest name: Abyssal (#404c57)Relative luminance 0.0779

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d4137

#375d54 · #37405d

#5d3753 · #535d37

Split-complementary

Open in tool →

#5d3740 · #5d5437

#54375d · #5d4137 · #405d37

Contrast

#37535d as textRatioAAAA largeAAAFix
Aaon white
8.21:1passpasspassPasses AAA — no fix needed.
Aaon black
2.56:1failfailfail
  • AA: use #517b8a as the text (4.55:1)
  • AAA: use #729cac as the text (7.07:1)
  • AA: or shift the background to #c2c2c2 (4.61:1)
  • AAA: or shift the background to #ededed (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37535d 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

#37535d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37535d
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 #37535d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37535d-9cb5c4-df4e6e-1f232d-e9f1ef?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