Color

#031d36

#031d36
hex#031d36
rgbrgb(3, 29, 54)
hslhsl(209, 89%, 11%)
oklchoklch(0.227 0.058 250.2)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0116

Tints & shades

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

Harmonies

Complementary

Open in tool →

#351b03

#033534 · #030435

#35031d · #1d3503

Split-complementary

Open in tool →

#350304 · #353403

#340335 · #351b03 · #043503

Contrast

#031d36 as textRatioAAAA largeAAAFix
Aaon white
17.03:1passpasspassPasses AAA — no fix needed.
Aaon black
1.23:1failfailfail
  • AA: use #0d76d9 as the text (4.61:1)
  • AAA: use #399af3 as the text (7.09:1)
  • AA: or shift the background to #858585 (4.62:1)
  • AAA: or shift the background to #a8a8a8 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #031d36 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

#031d36 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031d36
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 #031d36 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031d36-9cacc4-df4e4e-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