Color

#031e40

#031e40
hex#031e40
rgbrgb(3, 30, 64)
hslhsl(213, 91%, 13%)
oklchoklch(0.238 0.073 255.6)
Closest name: Midnight Mirage (#001f3f)Relative luminance 0.0132

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f2403

#033c3f · #06033f

#3f031e · #1e3f03

Split-complementary

Open in tool →

#3f0603 · #3c3f03

#3f033c · #3f2403 · #033f06

Contrast

#031e40 as textRatioAAAA largeAAAFix
Aaon white
16.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #0b72ef as the text (4.67:1)
  • AAA: use #4b98f7 as the text (7.13:1)
  • AA: or shift the background to #858585 (4.5:1)
  • AAA: or shift the background to #ababab (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #031e40 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

#031e40 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031e40
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 #031e40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031e40-9ca9c4-df584e-1f202d-e9f0f1?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