Color

#2b183f

#2b183f
hex#2b183f
rgbrgb(43, 24, 63)
hslhsl(269, 45%, 17%)
oklchoklch(0.256 0.073 304.2)
Closest name: Azulado (#211d49)Relative luminance 0.0153

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2c3f18

#18183f · #3e183f

#3f2b18 · #183f2b

Split-complementary

Open in tool →

#3f3e18 · #183f18

#3f1818 · #2c3f18 · #183f3e

Contrast

#2b183f as textRatioAAAA largeAAAFix
Aaon white
16.09:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #9060c3 as the text (4.65:1)
  • AAA: use #ac89d2 as the text (7.26:1)
  • AA: or shift the background to #8a8a8a (4.66:1)
  • AAA: or shift the background to #ababab (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b183f 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

#2b183f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b183f
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 #2b183f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b183f-b49cc4-cbcb62-2c1f2d-e9e9f1?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