Color

#031c2b

#031c2b
hex#031c2b
rgbrgb(3, 28, 43)
hslhsl(203, 87%, 9%)
oklchoklch(0.216 0.043 238.2)
Closest name: Midnight Dreams (#002233)Relative luminance 0.0102

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b1203

#032b26 · #03082b

#2b031c · #1c2b03

Split-complementary

Open in tool →

#2b0308 · #2b2603

#26032b · #2b1203 · #082b03

Contrast

#031c2b as textRatioAAAA largeAAAFix
Aaon white
17.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #0d7bbf as the text (4.6:1)
  • AAA: use #1a9def as the text (7.11:1)
  • AA: or shift the background to #828282 (4.54:1)
  • AAA: or shift the background to #a6a6a6 (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 #031c2b 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

#031c2b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031c2b
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 #031c2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031c2b-9cb0c4-df4e5d-1f222d-e9f1f0?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