Color

#437dea

#437dea
hex#437dea
rgbrgb(67, 125, 234)
hslhsl(219, 80%, 59%)
oklchoklch(0.608 0.176 261.6)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.218

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eab043

#43d1ea · #5c43ea

#ea437d · #7dea43

Split-complementary

Open in tool →

#ea5c43 · #d1ea43

#ea43d1 · #eab043 · #43ea5c

Contrast

#437dea as textRatioAAAA largeAAAFix
Aaon white
3.92:1failpassfail
  • AA: use #3071e8 as the text (4.51:1)
  • AAA: use #1551c1 as the text (7.05:1)
  • AA: or shift the background to #171717 (4.58:1)
Aaon black
5.36:1passpassfail
  • AAA: use #6897ee as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #437dea 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

#437dea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #437dea
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 #437dea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/437dea-9ca5c4-df664e-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