Color

#0f0f8a

#0f0f8a
hex#0f0f8a
rgbrgb(15, 15, 138)
hslhsl(240, 80%, 30%)
oklchoklch(0.303 0.187 267.8)
Closest name: darkblue (#00008b)Relative luminance 0.0228

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a8a0f

#0f4d8a · #4d0f8a

#8a0f0f · #0f8a0f

Split-complementary

Open in tool →

#8a4d0f · #4d8a0f

#8a0f4d · #8a8a0f · #0f8a4d

Contrast

#0f0f8a as textRatioAAAA largeAAAFix
Aaon white
14.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.46:1failfailfail
  • AA: use #6363ee as the text (4.55:1)
  • AAA: use #8c8cf2 as the text (7.15:1)
  • AA: or shift the background to #919191 (4.58:1)
  • AAA: or shift the background to #b5b5b5 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f0f8a 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

#0f0f8a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f0f8a
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 #0f0f8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f0f8a-a19cc4-df994e-251f2d-e9edf1?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