Color

#2153de

#2153de
hex#2153de
rgbrgb(33, 83, 222)
hslhsl(224, 74%, 50%)
oklchoklch(0.504 0.218 264.4)
Closest name: Denim (#1560bd)Relative luminance 0.1178

Colors that go with #2153de

Charcoal, Amber and 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.

Real palettes that use #2153de

Tints & shades

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

Harmonies

Complementary

Open in tool →

#deac21

#21b2de · #4d21de

#de2153 · #53de21

Split-complementary

Open in tool →

#de4d21 · #b2de21

#de21b2 · #deac21 · #21de4d

Contrast

#2153de as textRatioAAAA largeAAAFix
Aaon white
6.26:1passpassfail
  • AAA: use #1e4dcc as the text (7.03:1)
Aaon black
3.36:1failpassfail
  • AA: use #456fe3 as the text (4.64:1)
  • AAA: use #7595ea as the text (7.24:1)
  • AA: or shift the background to #dbdbdb (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2153de as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2153de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2153de
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 #2153de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2153de-9ca2c4-df724e-221f2d-e9eff1?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