Color

#374148

#374148
hex#374148
rgbrgb(55, 65, 72)
hslhsl(205, 13%, 25%)
oklchoklch(0.369 0.018 238.5)
Closest name: Arsenic (#3b444b)Relative luminance 0.0506

Tints & shades

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

Harmonies

Complementary

Open in tool →

#483e37

#374847 · #373948

#483741 · #414837

Split-complementary

Open in tool →

#483739 · #484737

#473748 · #483e37 · #394837

Contrast

#374148 as textRatioAAAA largeAAAFix
Aaon white
10.44:1passpasspassPasses AAA — no fix needed.
Aaon black
2.01:1failfailfail
  • AA: use #667885 as the text (4.59:1)
  • AAA: use #8999a4 as the text (7.16:1)
  • AA: or shift the background to #ababab (4.54:1)
  • AAA: or shift the background to #d4d4d4 (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 #374148 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

#374148 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #374148
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 #374148 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/374148-9cafc4-df4e58-1f212d-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