Color

#394451

#394451
hex#394451
rgbrgb(57, 68, 81)
hslhsl(213, 17%, 27%)
oklchoklch(0.382 0.027 252.8)
Closest name: Arsenic (#3b444b)Relative luminance 0.056

Tints & shades

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

Harmonies

Complementary

Open in tool →

#514639

#394f51 · #3a3951

#513944 · #445139

Split-complementary

Open in tool →

#513a39 · #4f5139

#51394f · #514639 · #39513a

Contrast

#394451 as textRatioAAAA largeAAAFix
Aaon white
9.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #63768c as the text (4.5:1)
  • AAA: use #8897aa as the text (7.05:1)
  • AA: or shift the background to #b0b0b0 (4.57:1)
  • AAA: or shift the background to #d9d9d9 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #394451 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

#394451 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #394451
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 #394451 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/394451-9ca9c4-df584e-1f202d-e9f0f1?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