Color

#43a2cb

#43a2cb
hex#43a2cb
rgbrgb(67, 162, 203)
hslhsl(198, 57%, 53%)
oklchoklch(0.673 0.107 229.9)
Closest name: Blue Burst (#309cd0)Relative luminance 0.3135

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb6c43

#43cbb0 · #435ecb

#cb43a2 · #a2cb43

Split-complementary

Open in tool →

#cb435e · #cbb043

#b043cb · #cb6c43 · #5ecb43

Contrast

#43a2cb as textRatioAAAA largeAAAFix
Aaon white
2.89:1failfailfail
  • AA: use #2c7da0 as the text (4.62:1)
  • AAA: use #215e78 as the text (7.15:1)
  • AA: or shift the background to #303030 (4.57:1)
  • AAA: or shift the background to #050505 (7.06:1)
Aaon black
7.27:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #43a2cb 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

#43a2cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #43a2cb
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 #43a2cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43a2cb-9cb3c4-df4e69-1f232d-e9f1f0?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