Color

#3c4b5d

#3c4b5d
hex#3c4b5d
rgbrgb(60, 75, 93)
hslhsl(213, 22%, 30%)
oklchoklch(0.407 0.036 253.3)
Closest name: Abyssal (#404c57)Relative luminance 0.0678

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5d4e3c

#3c5c5d · #3d3c5d

#5d3c4b · #4b5d3c

Split-complementary

Open in tool →

#5d3d3c · #5c5d3c

#5d3c5c · #5d4e3c · #3c5d3d

Contrast

#3c4b5d as textRatioAAAA largeAAAFix
Aaon white
8.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.36:1failfailfail
  • AA: use #5f7895 as the text (4.61:1)
  • AAA: use #8397af as the text (7.01:1)
  • AA: or shift the background to #bababa (4.59:1)
  • AAA: or shift the background to #e6e6e6 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c4b5d 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

#3c4b5d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c4b5d
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 #3c4b5d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c4b5d-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