Color

#18293e

#18293e
hex#18293e
rgbrgb(24, 41, 62)
hslhsl(213, 44%, 17%)
oklchoklch(0.277 0.045 254.4)
Closest name: Eternal Darkness (#1c2841)Relative luminance 0.0213

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e2d18

#183d3e · #1a183e

#3e1829 · #293e18

Split-complementary

Open in tool →

#3e1a18 · #3d3e18

#3e183d · #3e2d18 · #183e1a

Contrast

#18293e as textRatioAAAA largeAAAFix
Aaon white
14.73:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #4677b4 as the text (4.56:1)
  • AAA: use #739ac9 as the text (7.19:1)
  • AA: or shift the background to #8f8f8f (4.56:1)
  • AAA: or shift the background to #b3b3b3 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18293e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#18293e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #18293e
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 #18293e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18293e-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