Color

#101051

#101051
hex#101051
rgbrgb(16, 16, 81)
hslhsl(240, 67%, 19%)
oklchoklch(0.231 0.114 273)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0107

Tints & shades

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

Harmonies

Complementary

Open in tool →

#515110

#103051 · #301051

#511010 · #105110

Split-complementary

Open in tool →

#513010 · #305110

#511030 · #515110 · #105130

Contrast

#101051 as textRatioAAAA largeAAAFix
Aaon white
17.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #6666e1 as the text (4.55:1)
  • AAA: use #8c8ce8 as the text (7.03:1)
  • AA: or shift the background to #858585 (4.68:1)
  • AAA: or shift the background to #a6a6a6 (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 #101051 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

#101051 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #101051
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 #101051 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/101051-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