Color

#2b183e

#2b183e
hex#2b183e
rgbrgb(43, 24, 62)
hslhsl(270, 44%, 17%)
oklchoklch(0.255 0.072 305)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0151

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b3e18

#18183e · #3e183e

#3e2b18 · #183e2b

Split-complementary

Open in tool →

#3e3e18 · #183e18

#3e1818 · #2b3e18 · #183e3e

Contrast

#2b183e as textRatioAAAA largeAAAFix
Aaon white
16.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.3:1failfailfail
  • AA: use #9161c2 as the text (4.69:1)
  • AAA: use #ab86d0 as the text (7.05:1)
  • AA: or shift the background to #8a8a8a (4.67:1)
  • AAA: or shift the background to #ababab (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 #2b183e 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

#2b183e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b183e
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 #2b183e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b183e-b59cc4-c9cb62-2c1f2d-eae9f1?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