Color

#3e4651

#3e4651
hex#3e4651
rgbrgb(62, 70, 81)
hslhsl(215, 13%, 28%)
oklchoklch(0.391 0.021 256.4)
Closest name: Arsenic (#3b444b)Relative luminance 0.06

Tints & shades

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

Harmonies

Complementary

Open in tool →

#51493e

#3e4f51 · #403e51

#513e46 · #46513e

Split-complementary

Open in tool →

#51403e · #4f513e

#513e4f · #51493e · #3e5140

Contrast

#3e4651 as textRatioAAAA largeAAAFix
Aaon white
9.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #6a788a as the text (4.67:1)
  • AAA: use #8c97a6 as the text (7.09:1)
  • AA: or shift the background to #b3b3b3 (4.55:1)
  • AAA: or shift the background to #dedede (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e4651 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

#3e4651 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e4651
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 #3e4651 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e4651-9ca8c4-df5d4e-201f2d-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