Color

#438cdf

#438cdf
hex#438cdf
rgbrgb(67, 140, 223)
hslhsl(212, 71%, 57%)
oklchoklch(0.633 0.145 253.5)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2528

Colors that go with #438cdf

Charcoal, Copper and Amber 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 →

#df9743

#43dadf · #4943df

#df438c · #8cdf43

Split-complementary

Open in tool →

#df4943 · #dadf43

#df43da · #df9743 · #43df49

Contrast

#438cdf as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #2375d1 as the text (4.63:1)
  • AAA: use #1b579d as the text (7.25:1)
  • AA: or shift the background to #212121 (4.64:1)
Aaon black
6.06:1passpassfail
  • AAA: use #599ae3 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #438cdf 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

#438cdf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #438cdf
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 #438cdf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/438cdf-9caac4-df564e-1f202d-e9f1f1?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