Color

#311772

#311772
hex#311772
rgbrgb(49, 23, 114)
hslhsl(257, 66%, 27%)
oklchoklch(0.308 0.144 287.8)
Closest name: Deep Space Rodeo (#332277)Relative luminance 0.0248

Tints & shades

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

Harmonies

Complementary

Open in tool →

#597217

#172b72 · #5f1772

#723117 · #177231

Split-complementary

Open in tool →

#725f17 · #2b7217

#72172b · #597217 · #17725f

Contrast

#311772 as textRatioAAAA largeAAAFix
Aaon white
14.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.5:1failfailfail
  • AA: use #825ede as the text (4.61:1)
  • AAA: use #a388e7 as the text (7.23:1)
  • AA: or shift the background to #949494 (4.63:1)
  • AAA: or shift the background to #b8b8b8 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #311772 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

#311772 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #311772
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 #311772 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/311772-ac9cc4-dfc24e-291f2d-e9ebf1?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