Color

#30173a

#30173a
hex#30173a
rgbrgb(48, 23, 58)
hslhsl(283, 43%, 16%)
oklchoklch(0.257 0.07 315.5)
Closest name: Nightly Voyager (#391531)Relative luminance 0.0155

Tints & shades

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

Harmonies

Complementary

Open in tool →

#213a17

#1f173a · #3a1733

#3a3017 · #173a30

Split-complementary

Open in tool →

#333a17 · #173a1f

#3a1f17 · #213a17 · #17333a

Contrast

#30173a as textRatioAAAA largeAAAFix
Aaon white
16.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #a057bc as the text (4.58:1)
  • AAA: use #b883ce as the text (7.18:1)
  • AA: or shift the background to #8a8a8a (4.65:1)
  • AAA: or shift the background to #adadad (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #30173a 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

#30173a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30173a
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 #30173a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30173a-bb9fc1-b2cb62-2d1f2b-ebe9f1?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