Color

#100dbf

#100dbf
hex#100dbf
rgbrgb(16, 13, 191)
hslhsl(241, 87%, 40%)
oklchoklch(0.374 0.245 266.2)
Closest name: mediumblue (#0000cd)Relative luminance 0.0416

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bcbf0d

#0d63bf · #690dbf

#bf100d · #0dbf10

Split-complementary

Open in tool →

#bf690d · #63bf0d

#bf0d63 · #bcbf0d · #0dbf69

Contrast

#100dbf as textRatioAAAA largeAAAFix
Aaon white
11.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.83:1failfailfail
  • AA: use #6462f4 as the text (4.6:1)
  • AAA: use #8e8df7 as the text (7.3:1)
  • AA: or shift the background to #a3a3a3 (4.54:1)
  • AAA: or shift the background to #cccccc (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #100dbf 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

#100dbf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #100dbf
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 #100dbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/100dbf-a19cc4-df9b4e-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