Color

#33183a

#33183a
hex#33183a
rgbrgb(51, 24, 58)
hslhsl(288, 41%, 16%)
oklchoklch(0.264 0.07 319.1)
Closest name: Nightly Voyager (#391531)Relative luminance 0.0166

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f3a18

#22183a · #3a182f

#3a3318 · #183a33

Split-complementary

Open in tool →

#2f3a18 · #183a22

#3a2218 · #1f3a18 · #182f3a

Contrast

#33183a as textRatioAAAA largeAAAFix
Aaon white
15.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #a556b8 as the text (4.62:1)
  • AAA: use #bc81ca as the text (7.13:1)
  • AA: or shift the background to #8a8a8a (4.57:1)
  • AAA: or shift the background to #adadad (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 #33183a 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

#33183a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #33183a
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 #33183a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/33183a-be9fc1-aacb62-2d1f2a-ece9f1?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