Color

#2137de

#2137de
hex#2137de
rgbrgb(33, 55, 222)
hslhsl(233, 74%, 50%)
oklchoklch(0.459 0.247 267.2)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0833

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dec821

#2196de · #6921de

#de2137 · #37de21

Split-complementary

Open in tool →

#de6921 · #96de21

#de2196 · #dec821 · #21de69

Contrast

#2137de as textRatioAAAA largeAAAFix
Aaon white
7.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #5b6be6 as the text (4.69:1)
  • AAA: use #838fec as the text (7.11:1)
  • AA: or shift the background to #c4c4c4 (4.52:1)
  • AAA: or shift the background to #f2f2f2 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2137de 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

#2137de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2137de
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 #2137de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2137de-9c9cc4-df884e-241f2d-e9eef1?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