Color

#374649

#374649
hex#374649
rgbrgb(55, 70, 73)
hslhsl(190, 14%, 25%)
oklchoklch(0.382 0.02 211.2)
Closest name: Arsenic (#3b444b)Relative luminance 0.0567

Tints & shades

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

Harmonies

Complementary

Open in tool →

#493a37

#374943 · #373d49

#493746 · #464937

Split-complementary

Open in tool →

#49373d · #494337

#433749 · #493a37 · #3d4937

Contrast

#374649 as textRatioAAAA largeAAAFix
Aaon white
9.84:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #607b80 as the text (4.64:1)
  • AAA: use #829ca1 as the text (7.22:1)
  • AA: or shift the background to #b0b0b0 (4.54:1)
  • AAA: or shift the background to #dbdbdb (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #374649 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

#374649 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #374649
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 #374649 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/374649-a2b6be-df4e7c-1f252d-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