Color

#151f47

#151f47
hex#151f47
rgbrgb(21, 31, 71)
hslhsl(228, 54%, 18%)
oklchoklch(0.256 0.076 269.8)
Closest name: Dark Eclipse (#112244)Relative luminance 0.0159

Tints & shades

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

Harmonies

Complementary

Open in tool →

#473d15

#153847 · #241547

#47151f · #1f4715

Split-complementary

Open in tool →

#472415 · #384715

#471538 · #473d15 · #154724

Contrast

#151f47 as textRatioAAAA largeAAAFix
Aaon white
15.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #566ecd as the text (4.51:1)
  • AAA: use #8193d9 as the text (7.11:1)
  • AA: or shift the background to #8a8a8a (4.61:1)
  • AAA: or shift the background to #adadad (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #151f47 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

#151f47 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #151f47
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 #151f47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/151f47-9c9fc4-df7c4e-231f2d-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