Color

#123781

#123781
hex#123781
rgbrgb(18, 55, 129)
hslhsl(220, 76%, 29%)
oklchoklch(0.36 0.132 262.1)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0445

Tints & shades

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

Harmonies

Complementary

Open in tool →

#825d12

#126f82 · #241282

#821237 · #378212

Split-complementary

Open in tool →

#822412 · #6f8212

#82126f · #825d12 · #128224

Contrast

#123781 as textRatioAAAA largeAAAFix
Aaon white
11.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #356fe3 as the text (4.53:1)
  • AAA: use #6b96eb as the text (7.19:1)
  • AA: or shift the background to #a6a6a6 (4.57:1)
  • AAA: or shift the background to #cfcfcf (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #123781 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

#123781 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #123781
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 #123781 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/123781-9ca5c4-df694e-211f2d-e9f0f1?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