Color

#1c0189

#1c0189
hex#1c0189
rgbrgb(28, 1, 137)
hslhsl(252, 99%, 27%)
oklchoklch(0.298 0.189 273)
Closest name: Dramatic Blue (#240093)Relative luminance 0.0207

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6e8901

#012a89 · #600189

#891c01 · #01891c

Split-complementary

Open in tool →

#896001 · #2a8901

#89012a · #6e8901 · #018960

Contrast

#1c0189 as textRatioAAAA largeAAAFix
Aaon white
14.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.41:1failfailfail
  • AA: use #7958fe as the text (4.64:1)
  • AAA: use #9d85fe as the text (7.22:1)
  • AA: or shift the background to #8f8f8f (4.59:1)
  • AAA: or shift the background to #b3b3b3 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1c0189 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

#1c0189 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1c0189
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 #1c0189 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c0189-a99cc4-dfb64e-281f2d-e9ecf1?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