Color

#031f36

#031f36
hex#031f36
rgbrgb(3, 31, 54)
hslhsl(207, 89%, 11%)
oklchoklch(0.232 0.056 247)
Closest name: Midnight Dreams (#002233)Relative luminance 0.0127

Tints & shades

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

Harmonies

Complementary

Open in tool →

#351a03

#033533 · #030635

#35031f · #1f3503

Split-complementary

Open in tool →

#350306 · #353303

#330335 · #351a03 · #063503

Contrast

#031f36 as textRatioAAAA largeAAAFix
Aaon white
16.76:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #0c77cf as the text (4.56:1)
  • AAA: use #309bf3 as the text (7.11:1)
  • AA: or shift the background to #858585 (4.54:1)
  • AAA: or shift the background to #a8a8a8 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #031f36 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#031f36 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031f36
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 #031f36 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031f36-9cadc4-df4e53-1f212d-e9f1f1?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