Color

#03bab4

#03bab4
hex#03bab4
rgbrgb(3, 186, 180)
hslhsl(178, 97%, 37%)
oklchoklch(0.712 0.122 190.7)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3843

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ba0309

#03ba58 · #0364ba

#b403ba · #bab403

Split-complementary

Open in tool →

#ba0364 · #ba5803

#5803ba · #ba0309 · #64ba03

Contrast

#03bab4 as textRatioAAAA largeAAAFix
Aaon white
2.42:1failfailfail
  • AA: use #02837e as the text (4.62:1)
  • AAA: use #026461 as the text (7:1)
  • AA: or shift the background to #3b3b3b (4.63:1)
  • AAA: or shift the background to #1c1c1c (7.05:1)
Aaon black
8.69:1passpasspassPasses 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 #03bab4 as the background.

Brands using this color

mcpConnect your agent — build around #03bab4
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 #03bab4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03bab4-a2bcbe-d45999-1f282d-e9f1ed?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