Color

#101151

#101151
hex#101151
rgbrgb(16, 17, 81)
hslhsl(239, 67%, 19%)
oklchoklch(0.233 0.113 272.8)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0111

Tints & shades

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

Harmonies

Complementary

Open in tool →

#515010

#103251 · #2f1051

#511011 · #115110

Split-complementary

Open in tool →

#512f10 · #325110

#511032 · #515010 · #10512f

Contrast

#101151 as textRatioAAAA largeAAAFix
Aaon white
17.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #6668e1 as the text (4.63:1)
  • AAA: use #8c8ee8 as the text (7.15:1)
  • AA: or shift the background to #858585 (4.66:1)
  • AAA: or shift the background to #a6a6a6 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #101151 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

#101151 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101151
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 #101151 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101151-a09cc4-df964e-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