Color

#12031c

#12031c
hex#12031c
rgbrgb(18, 3, 28)
hslhsl(276, 81%, 6%)
oklchoklch(0.148 0.057 310.3)
Closest name: Glossy Black (#110011)Relative luminance 0.0028

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0d1c03

#05031c · #1c0319

#1c1203 · #031c12

Split-complementary

Open in tool →

#191c03 · #031c05

#1c0503 · #0d1c03 · #03191c

Contrast

#12031c as textRatioAAAA largeAAAFix
Aaon white
19.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.06:1failfailfail
  • AA: use #a742eb as the text (4.62:1)
  • AAA: use #bf75f0 as the text (7.02:1)
  • AA: or shift the background to #787878 (4.51:1)
  • AAA: or shift the background to #9c9c9c (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 #12031c 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

#12031c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12031c
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 #12031c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12031c-b99cc4-bfcb62-2d1f2d-eae9f1?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