Color

#388fe5

#388fe5
hex#388fe5
rgbrgb(56, 143, 229)
hslhsl(210, 77%, 56%)
oklchoklch(0.639 0.153 251.3)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2614

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e58f38

#38e5e5 · #3838e5

#e5388f · #8fe538

Split-complementary

Open in tool →

#e53838 · #e5e538

#e538e5 · #e58f38 · #38e538

Contrast

#388fe5 as textRatioAAAA largeAAAFix
Aaon white
3.37:1failpassfail
  • AA: use #1b75d0 as the text (4.66:1)
  • AAA: use #15599e as the text (7.11:1)
  • AA: or shift the background to #242424 (4.6:1)
Aaon black
6.23:1passpassfail
  • AAA: use #4a99e8 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #388fe5 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

#388fe5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #388fe5
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 #388fe5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/388fe5-9cabc4-df514e-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