Color

#37405d

#37405d
hex#37405d
rgbrgb(55, 64, 93)
hslhsl(226, 26%, 29%)
oklchoklch(0.376 0.051 270.6)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0527

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d5437

#37535d · #41375d

#5d3740 · #405d37

Split-complementary

Open in tool →

#5d4137 · #535d37

#5d3753 · #5d5437 · #375d41

Contrast

#37405d as textRatioAAAA largeAAAFix
Aaon white
10.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #6574a4 as the text (4.59:1)
  • AAA: use #8b96bb as the text (7.18:1)
  • AA: or shift the background to #adadad (4.56:1)
  • AAA: or shift the background to #d6d6d6 (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 #37405d 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

#37405d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37405d
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 #37405d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37405d-9ca1c4-df774e-221f2d-e9eff1?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