Color

#1c343f

#1c343f
hex#1c343f
rgbrgb(28, 52, 63)
hslhsl(199, 38%, 18%)
oklchoklch(0.311 0.036 229.1)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0306

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f281c

#1c3f39 · #1c233f

#3f1c34 · #343f1c

Split-complementary

Open in tool →

#3f1c23 · #3f391c

#391c3f · #3f281c · #233f1c

Contrast

#1c343f as textRatioAAAA largeAAAFix
Aaon white
13.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #447d97 as the text (4.63:1)
  • AAA: use #649eb9 as the text (7.13:1)
  • AA: or shift the background to #999999 (4.57:1)
  • AAA: or shift the background to #bfbfbf (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c343f as the background.

Brands using this color

Fonts for this mood

#1c343f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c343f
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 #1c343f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c343f-9cb3c4-df4e66-1f232d-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