Color

#2156c0

#2156c0
hex#2156c0
rgbrgb(33, 86, 192)
hslhsl(220, 71%, 44%)
oklchoklch(0.484 0.176 262.1)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1078

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c08b21

#21a5c0 · #3b21c0

#c02156 · #56c021

Split-complementary

Open in tool →

#c03b21 · #a5c021

#c021a5 · #c08b21 · #21c03b

Contrast

#2156c0 as textRatioAAAA largeAAAFix
Aaon white
6.65:1passpassfail
  • AAA: use #1f52b7 as the text (7.12:1)
Aaon black
3.16:1failpassfail
  • AA: use #3b71de as the text (4.6:1)
  • AAA: use #6b94e6 as the text (7:1)
  • AA: or shift the background to #d6d6d6 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2156c0 as the background.

Brands using this color

Fonts for this mood

#2156c0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2156c0
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 #2156c0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2156c0-9ca5c4-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