Color

#031e59

#031e59
hex#031e59
rgbrgb(3, 30, 89)
hslhsl(221, 93%, 18%)
oklchoklch(0.262 0.111 262.2)
Closest name: Dark Soul (#112255)Relative luminance 0.0167

Tints & shades

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

Harmonies

Complementary

Open in tool →

#593e03

#034959 · #130359

#59031e · #1e5903

Split-complementary

Open in tool →

#591303 · #495903

#590349 · #593e03 · #035913

Contrast

#031e59 as textRatioAAAA largeAAAFix
Aaon white
15.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #2b6cf7 as the text (4.59:1)
  • AAA: use #6695f9 as the text (7.23:1)
  • AA: or shift the background to #8a8a8a (4.56:1)
  • AAA: or shift the background to #adadad (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #031e59 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

#031e59 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031e59
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 #031e59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031e59-9ca4c4-df6b4e-211f2d-e9eff1?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