Color

#0f1f57

#0f1f57
hex#0f1f57
rgbrgb(15, 31, 87)
hslhsl(227, 71%, 20%)
oklchoklch(0.267 0.103 266.8)
Closest name: Dark Soul (#112255)Relative luminance 0.0177

Tints & shades

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

Harmonies

Complementary

Open in tool →

#57480f

#0f4357 · #230f57

#570f1e · #1e570f

Split-complementary

Open in tool →

#57230f · #43570f

#570f43 · #57480f · #0f5723

Contrast

#0f1f57 as textRatioAAAA largeAAAFix
Aaon white
15.51:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #4c6ce1 as the text (4.54:1)
  • AAA: use #7c94e9 as the text (7.27:1)
  • AA: or shift the background to #8c8c8c (4.61:1)
  • AAA: or shift the background to #b0b0b0 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f1f57 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

#0f1f57 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f1f57
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 #0f1f57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f1f57-9ca0c4-df7a4e-221f2d-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