Color

#120bd0

#120bd0
hex#120bd0
rgbrgb(18, 11, 208)
hslhsl(242, 90%, 43%)
oklchoklch(0.396 0.263 266.1)
Closest name: mediumblue (#0000cd)Relative luminance 0.0492

Colors that go with #120bd0

Charcoal, Crimson and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cad00b

#0b67d0 · #740bd0

#d0120b · #0bd012

Split-complementary

Open in tool →

#d0740b · #67d00b

#d00b67 · #cad00b · #0bd074

Contrast

#120bd0 as textRatioAAAA largeAAAFix
Aaon white
10.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.98:1failfailfail
  • AA: use #645ff7 as the text (4.52:1)
  • AAA: use #8e8bf9 as the text (7.21:1)
  • AA: or shift the background to #ababab (4.61:1)
  • AAA: or shift the background to #d4d4d4 (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 #120bd0 as the background.

Brands using this color

Fonts for this mood

#120bd0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #120bd0
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #120bd0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/120bd0-a29cc4-df9e4e-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