Color

#031030

#031030
hex#031030
rgbrgb(3, 16, 48)
hslhsl(223, 88%, 10%)
oklchoklch(0.185 0.067 262.5)
Closest name: Infinite Night (#071037)Relative luminance 0.006

Tints & shades

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

Harmonies

Complementary

Open in tool →

#302303

#032630 · #0d0330

#300310 · #103003

Split-complementary

Open in tool →

#300d03 · #263003

#300326 · #302303 · #03300d

Contrast

#031030 as textRatioAAAA largeAAAFix
Aaon white
18.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.12:1failfailfail
  • AA: use #366bf2 as the text (4.54:1)
  • AAA: use #6a92f6 as the text (7.06:1)
  • AA: or shift the background to #7d7d7d (4.55:1)
  • AAA: or shift the background to #a1a1a1 (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #031030 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

#031030 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031030
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 #031030 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031030-9ca3c4-df704e-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