Color

#150f71

#150f71
hex#150f71
rgbrgb(21, 15, 113)
hslhsl(244, 77%, 25%)
oklchoklch(0.273 0.155 272)
Closest name: midnightblue (#191970)Relative luminance 0.0169

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6a710f

#0f3971 · #460f71

#71150f · #0f7115

Split-complementary

Open in tool →

#71460f · #39710f

#710f39 · #6a710f · #0f7146

Contrast

#150f71 as textRatioAAAA largeAAAFix
Aaon white
15.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #6a61ea as the text (4.51:1)
  • AAA: use #908af0 as the text (7.08:1)
  • AA: or shift the background to #8a8a8a (4.54:1)
  • AAA: or shift the background to #b0b0b0 (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #150f71 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

#150f71 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #150f71
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 #150f71 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/150f71-a39cc4-dfa24e-261f2d-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